Can Truth Change Essay

Truth is a term used to indicate various forms of accord with fact or reality, or fidelity to an original or to a standard or ideal. The opposite of truth is falsehood, which, correspondingly, can also take on logical, factual, or ethicalmeanings. Language and words are a means by which humans convey information to one another in semiotic associations, and the method used to recognize a truth is termed a criterion of truth. There are differing claims as to what constitutes truth, what things are truthbearers capable of being true or false, how to define and identify truth, the roles that revealed and acquired knowledge play, and whether truth is subjective or objective, relative or absolute.


  • The national argument right now is, one, who's got the truth and, two, who's got the facts… Until we can manage to get the two of them back together again, we're not going to make much progress.
    • Michael Adams, lexicology professor at North Carolina State University, discussing the neologism "truthiness", defined as "the quality of stating concepts one wishes or believes to be true, rather than the facts" in "Linguists Vote 'Truthiness' Word of 2005", AP via Yahoo! News, (6 January 2006)
  • Art is magic delivered from the lie of being truth.
    • Theodor Adorno in Minima Moralia (1951), as translated by E. Jephcott (1974), § 143, p. 222.
  • Truth is strong enough to overcome all human sophistries.
  • Time, beneath whose influence the pyramids moulder into dust, and the flinty rocks decay, does not and cannot destroy a fact, nor strip a truth of one portion of its essential importance.
    • Anonymous statement, quoted in The Homilist; or, The pulpit for the People (1873) edited by David Thomas, p. 55.
  • To say of what is, that it is, or of what is not, that it is not, is true.
  • Why, then, does truth generate hatred, and why does thy servant who preaches the truth come to be an enemy to them who also love the happy life, which is nothing else than joy in the truth—unless it be that truth is loved in such a way that those who love something else besides her wish that to be the truth which they do love. Since they are unwilling to be deceived, they are unwilling to be convinced that they have been deceived. Therefore, they hate the truth for the sake of whatever it is that they love in place of the truth. They love truth when she shines on them; and hate her when she rebukes them.
  • These bitter accusations might have been suppressed, had I, with greater policy, concealed my struggles, and flattered you into the belief of my being impelled by unqualified, unalloyed inclination; by reason, by reflection, by everything. But disguise of every sort is my abhorrence. Nor am I ashamed of the feelings I related. They were natural and just.


  • Change in our views seems to be the only permanent phenomenon, and in no science has the maxim: "Much arises which has already perished, and what is now honored is already declining," attained such extended verification as in the very science of medicine. Even so in this same science has been proven the truth of that other saying: "As long at man struggles he errs". To err in its struggles after the truth is, however, according to the resigned expression of Lessing, the portion of humanity, and absolute truth is of God alone.
  • You must be ever vigilant to discover the unifying Truth behind all the scintillating variety.
  • Not being known doesn't stop the truth from being true.
  • The logic now in use serves rather to fix and give stability to the errors which have their foundation in commonly received notions than to help the search for truth. So it does more harm than good.
  • What is truth? said jesting Pilate, but would not stay for an answer.
    • Francis Bacon, Essays 1: Of truth.
  • But no pleasure is comparable to standing upon the vantage ground of truth.
    • Francis Bacon, Essays, Of Truth; reported in Josiah Hotchkiss Gilbert, Dictionary of Burning Words of Brilliant Writers (1895), p. 603; in Hoyt's New Cyclopedia Of Practical Quotations (1922), p. 818.
  • Yes, there is a Divinity, one from which we must never turn aside for the guidance of our huge inward life and of the share we have as well in the life of all men. It is called the truth.
  • Unfortunately, truth is neither a listable nor a decidable property; nor is the truth of a statement of arithmetic. The American logician John Myhill has used the term 'prospective' to characterize those attributes of the world that are neither listable nor decidable. They are properties that cannot be recognized by the application of some formula, made to conform to a rule, or generated by some computer program. They are characterized by incessant novelty that cannot be encompassed by any finite set of rules. 'Beauty', 'ugliness', 'truth', 'harmony', simplicity', and 'poetry' are names we give to some of the attributes of this sort. There is no way of listing all examples of beauty or ugliness, nor any procedure for saying whether or not something possesses either of those attributes, without redefining them in some more restrictive fashion that kills their prospective character.
  • [T]he single equation of nature, aimed at by Lagrange and Hamilton, by Weber and Maxwell in their several ways, has... reached a more profound significance and now even holds dynamics, awkwardly it is true but none the less inexorably, in its grasp. That it is not complete, that it never can be complete, is admitted (for the absolute truth poured into the vessel of the human mind would probably dissolve it); but that it is immeasurably more complete to-day than it was yesterday is as incontrovertably true as it is inspiring.
    • Carl Barus, "The Mathematician in Modern Physics" (Nov. 20, 1914) Science Vol. 40, Jul-Dec 1914, p. 727.
  • Science leads to great achievements, which, quite rightly, fill of joy those who seek the truth, but if pursued, teaches us that we must seek other sources of ultimate truth and find answers to existential questions about the meaning of life and the mystery of death.
    • Franco BassaniKnowing the universe. For whom? at the XXVII edition of the “Meeting for Friendship Among Peoples”, Rimini meeting 2006, August 23, 2006.
  • Nothing is wholly obvious without becoming enigmatic. Reality itself is too obvious to be true.
    • Jean Baudrillard, The Perfect Crime (1993), as translated by Ian Michel and William Sarah (1995).
  • Relations between States and within States are correct to the extent that they respect the truth. When, instead, truth is violated, peace is threatened, law is endangered, then, as a logical consequence, forms of injustice are unleashed. These form boundaries that divide countries far more deeply than the frontiers outlined on maps and are often not only external but also internal.
  • Love — caritas — is an extraordinary force which leads people to opt for courageous and generous engagement in the field of justice and peace. It is a force that has its origin in God, Eternal Love and Absolute Truth. Each person finds his good by adherence to God's plan for him, in order to realize it fully: in this plan, he finds his truth, and through adherence to this truth he becomes free (cf. Jn 8:32). To defend the truth, to articulate it with humility and conviction, and to bear witness to it in life are therefore exacting and indispensable forms of charity. Charity, in fact, “rejoices in the truth” (1 Cor 13:6).
  • Only in truth does charity shine forth, only in truth can charity be authentically lived. Truth is the light that gives meaning and value to charity. That light is both the light of reason and the light of faith, through which the intellect attains to the natural and supernatural truth of charity: it grasps its meaning as gift, acceptance, and communion. Without truth, charity degenerates into sentimentality. Love becomes an empty shell, to be filled in an arbitrary way. In a culture without truth, this is the fatal risk facing love. It falls prey to contingent subjective emotions and opinions, the word “love” is abused and distorted, to the point where it comes to mean the opposite. Truth frees charity from the constraints of an emotionalism that deprives it of relational and social content, and of a fideism that deprives it of human and universal breathing-space.
  • The Church does not have technical solutions to offer and does not claim “to interfere in any way in the politics of States.” She does, however, have a mission of truth to accomplish, in every time and circumstance, for a society that is attuned to man, to his dignity, to his vocation. Without truth, it is easy to fall into an empiricist and sceptical view of life, incapable of rising to the level of praxis because of a lack of interest in grasping the values — sometimes even the meanings — with which to judge and direct it. Fidelity to man requires fidelity to the truth, which alone is the guarantee of freedom (cf. Jn 8:32) and of the possibility of integral human development. For this reason the Church searches for truth, proclaims it tirelessly and recognizes it wherever it is manifested. This mission of truth is something that the Church can never renounce. Her social doctrine is a particular dimension of this proclamation: it is a service to the truth which sets us free. Open to the truth, from whichever branch of knowledge it comes, the Church's social doctrine receives it, assembles into a unity the fragments in which it is often found, and mediates it within the constantly changing life-patterns of the society of peoples and nations
  • The aim of life is inquiry into the Truth, and not the desire for enjoyment in heaven by performing religious rites, Those who possess the knowledge of the Truth, call the knowledge of non-duality as the Truth, It is called Brahman, the Highest Self, and Bhagavan.
    • Bhagavata Purana 1.2.10-11, translated by Daniel Sheridan 1986, p. 23
  • Truth can never be told so as to be understood, and not be believed.
    • William Blake, Proverbs of Hell, Line 69, The Marriage of Heaven and Hell (1790–1793)
  • Two sorts of truth: profound truths recognized by the fact that the opposite is also a profound truth, in contrast to trivialities where opposites are obviously absurd.
    • Niels Bohr, As quoted by his son Hans Bohr in "My Father", published in Niels Bohr: His Life and Work (1967), p. 328
    • Unsourced variant: The opposite of a correct statement is a false statement. But the opposite of a profound truth may well be another profound truth.
    • As quoted in Max Delbrück, Mind from Matter: An Essay on Evolutionary Epistemology, (1986) p. 167. It is the hallmark of any deep truth that its negation is also a deep truth.
  • Without free speech no search for Truth is possible; without free speech no discovery of Truth is useful; without free speech progress is checked, and the nations no longer march forward towards the nobler life which the future holds for man. Better a thousandfold abuse of free speech than denial of free speech. The abuse dies in a day; the denial slays the life of the people and entombs the hope of the race.
    • Charles Bradlaugh, Speech at Hall of Science c.1880 quoted in An Autobiography of Annie Besant; reported in Edmund Fuller, Thesaurus of Quotations (1941), p. 398; reported as unverified in Respectfully Quoted: A Dictionary of Quotations (1989).
  • For Darwinism there is nothing in the world like value or good or evil. Anything implying evolution, in the ordinary sense of development or progress, is wholly rejected. But... there is a coincidence between that which prevails and that which satisfies. ...Whatever idea satisfies or prevails (no matter what else it is) is true.
    Darwinism often recommends itself because confused with a doctrine of evolution which is different radically. Humanity is taken in that doctrine as a real being, or even as the one real being, and Humanity advances continuously. Its history is development and progress to a goal because the type and character in which its reality consists is gradually brought more and more into existence. That which is strongest on the whole must therefore be good, and the ideas that come to prevail must therefore be true. This doctrine, which possesses my sympathy, though I certainly cannot accept it, has, I suppose, now for a century taken its place in the thought of Europe. For good or evil it more or less dominates or sways our minds to an extent of which most of us, perhaps, are dangerously unaware.
    • F. H. Bradley (1846 –1924) "On Some Aspects of Truth," as quoted in Bradley, Essays on Truth and Reality (2011)
  • The world is made up, for the most part, of fools and knaves, both irreconcilable foes to truth.
    • George Villiers, 2nd Duke of Buckingham, "Letter to Mr. Clifford, on his Human Reason"; also in The Works of His Grace, George Villiers, the Duke of Buckingham (London: T. Evans, 1770) vol. 2, p. 105.
  • We talked of the casuistical question, Whether it was allowable at any time to depart from Truth? JOHNSON.'The general rule is, that Truth should never be violated, because it is of the utmost importance to the comfort of life, that we should have a full security by mutual faith; and occasional inconveniences should be willingly suffered that we may preserve it. There must, however, be some exceptions. If, for instance, a murderer should ask you which way a man is gone, you may tell him what is not true, because you are under a previous obligation not to betray a man to a murderer.' BOSWELL. 'Supposing the person who wroteJuniuswere asked whether he was the authour, might he deny it?' JOHNSON. 'I don't know what to say to this. If you were sure that he wrote Junius, would you, if he denied it, think as well of him afterwards? Yet it may be urged, that what a man has no right to ask, you may refuse to communicate; and there is no other effectual mode of preserving a secret and an important secret, the discovery of which may be very hurtful to you, but a flat denial; for if you are silent, or hesitate, or evade, it will be held equivalent to a confession. But stay, Sir; here is another case. Supposing the authour had told me confidentially that he had written Junius, and I were asked if he had, I should hold myself at liberty to deny it, as being under a previous promise, express or implied, to conceal it. Now what I ought to do for the authour, may I not do for myself? But I deny the lawfulness of telling a lie to a sick man for fear of alarming him. You have no business with consequences; you are to tell the truth. Besides, you are not sure what effect your telling him that he is in danger may have. It may bring his distemper to a crisis, and that may cure him. Of all lying, I have the greatest abhorrence of this, because I believe it has been frequently practised on myself.'
    I cannot help thinking that there is much weight in the opinion of those who have held, that Truth, as an eternal and immutable principle, ought, upon no account whatever, to be violated, from supposed previous or superiour obligations, of which every man being to judge for himself, there is great danger that we too often, from partial motives, persuade ourselves that they exist; and probably whatever extraordinary instances may sometimes occur, where some evil may be prevented by violating this noble principle, it would be found that human happiness would, upon the whole, be more perfect were Truth universally preserved.
  • Questions don't change the truth. But they give it motion.
  • Truth, crushed to earth, shall rise again;
    The eternal years of God are hers;
    But Error, wounded, writhes with pain,
    And dies among his worshippers.
  • Truth makes on the surface of nature no one track of light — every eye looking on finds its own.
  • For truth is precious and divine;
    Too rich a pearl for carnal swine.
  • 'Tis not antiquity, nor author,
    That makes truth truth, altho' time's daughter.
  • 'Tis strange—but true; for truth is always strange,
    Stranger than fiction.


  • They tell me that truth lies somewhere at the bottom of a well, and at virtually the door of our home is a most notable if long dried well. Our location is thus quite favorable, if we but keep patience.
    • James Branch Cabell, The Silver Stallion (1926), Kerin, in Book Seven : What Saraïde Wanted, Ch. XLII : Generalities at Ogde.
  • Where this will end? In the Abyss, one may prophecy; whither all Delusions are, at all moments, travelling; where this Delusion has now arrived. For if there be a Faith, from of old, it is this, as we often repeat, that no Lie can live for ever. The very Truth has to change its vesture, from time to time; and be born again. But all Lies have sentence of death written down against them, and Heaven's Chancery itself; and, slowly or fast, advance incessantly towards their hour.
  • "...The virtue of truth gives another his just due. Truthfulness keeps to the just mean between what ought to be expressed and what ought to be kept secret: it entails honesty and discretion. In justice, "as a matter of honor, one man owes it to another to manifest the truth.
    • "Catechism of the Catholic Church §2469"
  • Before all other things, man is distinguished by his pursuit and investigation of Truth. And hence, when free from needful business and cares, we delight to see, to hear, and to communicate, and consider a knowledge of many admirable and abstruse things necessary to the good conduct and happiness of our lives: whence it is clear that whatsoever is True, simple, and direct, the same is most congenial to our nature as men. Closely allied with this earnest longing to see and know the truth, is a kind of dignified and princely sentiment which forbids a mind, naturally well constituted, to submit its faculties to any but those who announce it in precept or in doctrine, or to yield obedience to any orders but such as are at once just, lawful, and founded on utility. From this source spring greatness of mind and contempt of worldly advantages and troubles.
  • I smile when I'm angry, I cheat and I lie. I do what I have to do to get by. But I know what is wrong and I know what is right, and I'd die for the truth in my secret life.
  • Truthiness is tearing apart our country, and I don't mean the argument over who came up with the word. I don't know whether it's a new thing, but it's certainly a current thing, in that it doesn't seem to matter what facts are.
Not curiosity, not vanity, not the consideration of expediency, not duty and conscientiousness, but an unquenchable, unhappy thirst that brooks no compromise leads us to truth. ~ G. W. F. Hegel
Truth is strong enough to overcome all human sophistries. ~ Aeschines
Relations between States and within States are correct to the extent that they respect the truth. When, instead, truth is violated, peace is threatened, law is endangered, then, as a logical consequence, forms of injustice are unleashed. ~ Pope Benedict XVI
Truth draws strength from itself and not from the number of votes in its favour. ~ Pope Benedict XVI
Only in truth does charity shine forth, only in truth can charity be authentically lived. Truth is the light that gives meaning and value to charity. That light is both the light of reason and the light of faith, through which the intellect attains to the natural and supernatural truth of charity: it grasps its meaning as gift, acceptance, and communion. Without truth, charity degenerates into sentimentality. Love becomes an empty shell, to be filled in an arbitrary way. ~ Pope Benedict XVI
Every truth—if it really is truth—presents itself as universal, even if it is not the whole truth. If something is true, then it must be true for all people and at all times. ~ Pope John Paul II
Truth can never be confined to time and culture; in history it is known, but it also reaches beyond history. ~ Pope John Paul II
The general rule is, that Truth should never be violated, because it is of the utmost importance to the comfort of life. ~ James Boswell
They tell me that truth lies somewhere at the bottom of a well, and at virtually the door of our home is a most notable if long dried well. Our location is thus quite favorable, if we but keep patience. ~ James Branch Cabell
The very Truth has to change its vesture, from time to time; and be born again. ~ Thomas Carlyle
Whatever the future may have in store for us, one thing is certain... Human thought will never go backward. When a greattruth once gets abroad in the world, no power on earth can imprison it, or prescribe its limits, or suppress it. It is bound to go on till it becomes the thought of the world... Now that it has got fairly fixed in the minds of the few, it is bound to become fixed in the minds of the many, and be supported at last by a great cloud of witnesses, which no man can number and no power can withstand. ~ Frederick Douglass
When life is true to the poles of nature, the streams of truth will roll through us in song. ~ Ralph Waldo Emerson
Reason is man's instrument for arriving at the truth, intelligence is man's instrument for manipulating the world more successfully; the former is essentially human, the latter belongs to the animal part of man. ~ Erich Fromm
Truth alone will endure, all the rest will be swept away before the tide of time. ~ Mahatma Gandhi
It is natural for man to indulge in the illusions of hope and pride. We are apt to shut our eyes against a painful truth, and listen to the song of that siren till she transforms us into beasts. … For my part, whatever anguish of spirit it may cost, I am willing to know the whole truth; to know the worst, and to provide for it. ~ Patrick Henry
Truth advances, and error recedes step by step only; and to do to our fellow men the most good in our power, we must lead where we can, follow where we cannot, and still go with them, watching always the favorable moment for helping them to another step. ~ Thomas Jefferson
Truth is great and will prevail if left to herself; [..] she is the proper and sufficient antagonist to error, and has nothing to fear from the conflict unless by human interposition disarmed of her natural weapons, free argument and debate; errors ceasing to be dangerous when it is permitted freely to contradict them. ~ Thomas Jefferson
Ye shall know the truth, and the truth shall make you free. ~ Jesus
Nothing is sacred but the truth, and by truth I mean what a man sincerely and honestly believes. ~ Robert G. Ingersoll
What does truth require? It requires us to face the facts as they are, not to involve ourselves in self-deception; to refuse to think merely in slogans. … let us deal with the realities as they actually are, not as they might have been, and not as we wish they were. ~ John F. Kennedy
The great enemy of the truth is very often not the lie — deliberate, contrived and dishonest — but the myth — persistent, persuasive, and unrealistic. ~ John F. Kennedy
You can go after only what is known. When the mind is not tortured by the known, by the effects of the known, then only can truth reveal itself. ~ Jiddu Krishnamurti
Truth is not of the past or the present, it is timeless; the man who quotes the truth of the Buddha, of Shankara, of Christ, or who merely repeats what I am saying, will not find truth, because repetition is not truth. Repetition is a lie. ~ Jiddu Krishnamurti
Truth makes on the surface of nature no one track of light — every eye looking on finds its own. ~ Edward Bulwer-Lytton
Truth has no path. Truth is living and, therefore, changing. ~ Bruce Lee
It is one thing to show a man that he is in error, and another to put him in possession of the truth. ~ John Locke
There are very few lovers of truth, for truth's sake, even amongst those who persuade themselves that they are so. ~ John Locke
No man can teach another self-knowledge. He can only lead him or her up to self-discovery — the source of truth. ~ Barry Long
The only way we can ever get through to the truth is by finding out what we are not. We do that by looking, by observation. ~ Barry Long
Accept the truth from whatever source it comes. ~ Maimonides
At times the truth shines so brilliantly that we perceive it as clear as day. Our nature and habit then draw a veil over our perception, and we return to a darkness almost as dense as before. ~ Maimonides
The truths should be at one time apparent and at another time concealed. ~ Maimonides
The knowledge of the truth removes hatred and quarrels, and prevents mutual injuries. ~ Maimonides
Truth shall spring out of the earth; and righteousness shall look down from heaven. ~ Psalm 85:11
The truth. It is a beautiful and terrible thing, and should therefore be treated with great caution. ~ J. K. Rowling
The truth as always is simultaneously better and worse than what the popular myth-making has it. ~ William Saroyan
Happy is the man that has found wisdom … It is a tree of life to those taking hold of it, and those keeping fast hold of it are to be called happy. ~ Solomon
Truth is elusive to those who refuse to see with both eyes. ~ Stargate SG-1 Season 10 episode 10 "The Quest Part 1"
All truths wait in all things, They neither hasten their own delivery nor resist it... ~ Walt Whitman

Truth, like knowledge, is surprisingly difficult to define. We seem to rely on it almost every moment of every day and it's very "close" to us. Yet it's difficult to define because as soon as you think you have it pinned down, some case or counterexample immediately shows deficiencies. Ironically, every definition of truth that philosophers have developed falls prey to the question, "Is it true?"

Simply, we can define truth as: a statement about the way the world actually is. We'll look at various theories below that philosophers have considered but that's an adequate rough-and-ready definition to get us started. Coming up with a definition of truth falls under the discipline of epistemology or the study of knowledge though some philosophers categorize it as a study in metaphysics--the study of what is real.

In this essay, we'll look at some reasons why defining truth can be challenging. Truth seems like something we naturally comprehend and while intuition can help us a great deal in understanding what it is, surface definitions present us with unique problems and I’ll illustrate why. I'll then lay out some terms and concepts that will help us get a better handle on understanding what truth is. Next, we'll look at three main views of truth. The coherence theory describes truth in terms of interconnected belief. A belief is true if it is consistent with other beliefs we have. The correspondence theory describes truth in terms of a relation concepts or propositions have to the actual world. Finally postmodernism lays out a view of truth in terms of individual perspectives and community agreement. While this essay does not focus on practical issues like why a view of truth is important, I'll say a few words about that idea at the end and provide more resources for further reading.

Elusive Truth

I stated above that defining truth can be challenging. Let’s briefly look at why this is so by way of a seemingly simple example. Suppose you examine an apple and determine that it’s red, sweet, smooth and crunchy. You might claim this is what the apple is. Put another way, you've made truth claims about the apple and seemingly made statements about real properties of the apple. But immediate problems arise. Let's suppose your friend is color blind (this is unknown to you or her) and when she looks at the apple, she says that the apple is a dull greenish color. She also makes a truth claim about the color of the apple but it's different than your truth claim. What color is the apple?

Well, you might respond, that's an easy problem to solve. It's actually red because we've stipulated that your friend has an anomaly in her truth-gathering equipment (vision) and even though we may not know she has it, the fact that she does means her view of reality is incorrect. But now let’s suppose everyone is color blind and we all see "red" apples as green? We can make this objection even stronger by asking how we know that we all aren't in fact color blind in a way we don't understand and apples really aren't red after all. No one has access to the “real” color of the apple. Again, the response might be that that this is a knowledge problem, not a truth problem. The apple really is red but we all believe it’s green. But notice that the truth of the apple’s color has little role to play in what we believe. No one knows what the truth is and so it plays no role in our epistemology.

The challenge is that our view of truth is very closely tied to our perspective on what is true. This means that in the end, we may be able to come up with a reasonable definition of truth, but if we decide that no one can get to what is true (that is, know truth), what good is the definition? Even more problematic is that our perspective will even influence our ability to come up with a definition! These are no small concerns and we'll explore some responses below.

Some Preliminaries

Before we get to definitions of truth, we need to define some terms used in those definitions which will make things a little easier to digest. Epistemologists (people who study truth, belief and knowledge) use the following concepts as the framework for their study of truth.

Propositions. A common technical definition of a proposition (credited to Peter van Inwagen) is "a non-linguistic bearer of truth value." A proposition is a representation of the world or a way the world could possibly be and propositions are either true or false. Propositions are different than sentences. Sentences are symbolic, linguistic representations of propositions. Okay, that's all very technical. What does it mean?

Let's take the sentence, "The moon has craters." This is an English sentence that supposedly states some fact about the world or reality (and specifically about the moon). Because it’s in English, we say it's "linguistic" or language-based. If we're going to get philosophical about it, we could describe its properties as having four words and 17 letters, it's in the English language written in 11 point font and it's black. I could write the same sentence like this:

The moon has craters.

This sentence has different properties from the first one above. This one still has the same number of words and letters and it's in English. But it is in 18 point font and is written in blue. Now let's take this sentence, "La luna tiene cráteres." This sentence has four words but 19 letters. It's written in 11 point font and is black but it's Spanish. What do all three sentences have in common? Well, they all express the same idea or meaning and we could say the same "truth." We could express the same idea in Swahili, semaphore, Morse code, or any other symbolic system that conveys meaning.

Notice that the symbols themselves are neither true nor false. The meaning the sentences represent is either true or false. Sentences are symbolic representations of something else—propositions. The common property true of all sentences that express the same truth is what philosophers call the propositional content of the sentences or "the proposition." Now we can better understand the idea behind "non-linguistic bearer of truth value." Propositions are non-linguistic because they aren't written or spoken in a language. They bear truth because they are the things that are true or false. This is what allows them to be expressed or "exemplified" in a variety of different symbolic systems like language-based sentences. When it comes to understanding truth, many philosophers believe propositions are at the center.

Belief. Beliefs are things (at least) people have. They don't exist outside the mind. Some philosophers say beliefs are "dispositional." That is, they incline a person to behave in a way as if the thing they believe is true. So a belief, simply, is a proposition that a person accepts as representing the way the world actually is. Beliefs can be about false propositions and thus be "wrong" because the person accepts them as true. This is a critical distinction. While a proposition has to be true or false, beliefs can be about true or false propositions even though a person always accepts them as being true.

Some philosophers attempt to define truth "mind-independently." That means, they want to come up with a definition that doesn't depend on whether humans can actually believe or know what is true. Truth is viewed as independent of our minds and they seek a definition of it that captures this. Other philosophers have developed theories that keep people at the center. That is, truth and belief are considered together and are inseparable. I will try to make the relevance of the "epistemic" vs. "independent" views of truth relevant below.

Knowledge. Knowledge is belief in a true proposition that a person is justified in holding as true. The conditions under which a person is justified is complicated and there are many theories about when the conditions are met. Theories of knowledge attempt to describe when a person is in a "right" cognitive relationship with true propositions. I describe some theories of knowledge and some of the challenges in understanding when a person knows in an article for Philosophy News called "What is Knowledge?"

Common Definitions

The Coherence View of Truth

The main idea behind this view is that a belief is true if it "coheres" or is consistent with other things a person believes. For example, a fact a person believes, say "grass is green" is true if that belief is consistent with other things the person believes like the definition of green and whether grass exists and the like. It also depends on the interpretation of the main terms in those other beliefs. Suppose you’ve always lived in a region covered with snow and never saw grass or formed beliefs about this strange plant life. The claim "grass is green" would not cohere with other beliefs because you have no beliefs that include the concept "grass." The claim, "grass is green" would be nonsense because it contains a nonsensical term "grass." That is, you never formed a belief about grass so there’s nothing for this new belief to cohere with.

As you can see from the above description, coherence theories typically are described in terms of beliefs. This puts coherence theories in the "epistemic" view of truth camp noted above. This is because, coherence theorists claim, we can only ground a given belief on other things we believe. We cannot "stand outside" our own belief system to compare our beliefs with the actual world. If I believe Booth shot Lincoln, I can only determine if that belief is truth based on other things I believe like "Wikipedia provides accurate information" or "My professor knows history and communicates it well" or "Uncle John sure was a scoundrel".

These are other beliefs and serve as a basis for my original belief. Thus truth is essentially epistemic since any other model requires a type of access to the "real world" we simply can't have. As philosopher Donald Davidson describes the situation, "If coherence is a test of truth, there is a direct connection with epistemology, for we have reason to believe many of our beliefs cohere with many others, and in that case we have reason to believe many of our beliefs are true." (Davidson, 2000)


The Correspondence Theory of Truth

Arguably the more widely-held view of truth (stemming from a broader rationalist tradition in philosophy), philosophers who argue for the correspondence theory hold that there is a world external to our beliefs that is somehow accessible to the human mind. More specifically, correspondence theorists hold that there are a set of "truth-bearing" representations (or propositions) about the world that align to or correspond with reality or states of affairs in the world. A state of affairs just is a particular way the world or reality is. When a proposition aligns to the world, the proposition is said to be true. Truth, on this view, is that correspondence relation.

Take this proposition: "The Seattle Seahawks won Super Bowl 48 in 2014." The proposition is true if in fact the Seahawks did win super Bowl 48 in 2014 (they did) and false if they didn't.

Notice that on this view, propositions about reality are different from beliefs we may have of reality. We believe propositions--I believe that the moon has craters. What follows the "that" is meant to signify the proposition that a person believes. So truth on this view is when the proposition matches reality.

The correspondence theory only lays out the condition for truth in terms of propositions and the way the world actually is. This definition does not involve beliefs that people have. Propositions are true or false regardless of whether anyone believes them. Just think of a proposition as a way the world possibly could be: "The Seahawks won Super Bowl 48" or "The Seahawks lost Super Bowl 48" -- both propositions possibly are true. True propositions are those that correspond to what actually happened.

You'll notice that this definition does not include a belief component. That is, unlike the coherence theory, the correspondence theory describes truth in terms that are independent of beliefs humans may have. This has the distinct advantage of separating truth from the messy business of belief and knowledge but may warrant complaints of being impractical.


Postmodern thought covers a wide theoretical area but informs modern epistemology particularly when it comes to truth. Postmodern theories of truth are difficult to articulate in strict terms because postmodern theorists tend to eschew hard and fast definitions. But we can provide some insight here. Put in simple terms, postmodernists describe truth not as a relationship outside of the human mind that we can align belief to but as a product of belief. We never access reality because we can never get outside our own beliefs to do so. Our beliefs function as filters that keep reality (if such a thing exists) beyond us. Since we can never access reality, it does no good to describe knowledge or truth in terms of reality because there's nothing we can actually say about it that's meaningful. Truth then is constructed by what we perceive and ultimately believe.

Immanuel Kant

I'm inclined to earmark the foundation of postmodern thought with the work of Immanuel Kant, specifically with his work The Critique of Pure Reason. In my view, Kant was at the gateway of postmodern thought. He wasn't a postmodernist himself but provided the framework for what later developed.  

Kant makes a foundational distinction between the "objects" of subjective experience and the "objects" of "reality." He labels the former phenomena and that latter noumena. The noumena for Kant are things in themselves (ding an sich). These exist outside of and separate from the mind. This is what we might call "reality" or actual states of affairs similar to what we saw in the correspondence theory above. But for Kant, the noumena are entirely unknowable in and of themselves. However, the noumena give rise to the phenomena or are the occasion by which we come to know the phenomena.

The phenomena make up the world we know, the world "for us" (für uns). This is the world of rocks, trees, books, tables, and any other objects we access through the five senses. This is the world of our experience. This world, however, does not exist apart from our experience. It is essentially experiential. Kant expressed this idea as follows: the world as we know it is "phenomenally real but transcendentally ideal." That is objects that we believe exist in the world are a "real" part of our subjective experience but they do not exist apart from that subjective experience and don't transcend the ideas we have. The noumena are "transcendentally real" or they exist in and of themselves but are never experienced directly or even indirectly.

The noumena are given form and shape by what Kant described as categories of the mind and this 'ordering' gives rise to phenomenal objects. This is where it relates to truth: phenomenal objects are not analogues, copies, representations or any such thing of the noumena. The noumena gives rise to the phenomena but in no way resembles them. Scholars have spent countless hours trying to understand Kant on this point since it seems like the mind interacts with the noumena in some way. But Kant does seem to be clear that the mind never experiences the noumena directly and the phenomena in no way represents the noumena.

We can now see the beginnings of postmodern thought. If we understand the noumena as “reality” and the phenomena as the world we experience, we can see that we never get past our experience to reality itself. It's not like a photograph which represents a person and by seeing the photograph we can have some understanding of what the "real person" actually looks like. Rather (to use an admittedly clumsy example) it's like being in love. We can readily have the experience and we know the brain is involved but we have no idea how it works. By experiencing the euphoria of being in love, we learn nothing about how the brain works.

On this view then, what is truth? Abstractly we might say truth is found in the noumena since that's reality. But postmodernists have taken Kant's idea further and argued that since we can't say anything about the noumena, why bother with it at all? Kant didn’t provided a good reason to believe the noumena exists but seems to have asserted its existence because, after all, something was needed to give rise to the phenomena. Postmodernists just get rid of this extra baggage and focus solely on what we experience.

Perspective and Truth

Further, everyone's experience of the world is a bit different--we all have different life experiences, background beliefs, personalities and dispositions, and even genetics that shape our view of the world. This makes it impossible, say the postmodernists to declare an "absolute truth" about much of anything since our view of the world is a product of our individual perspective. Some say that our worldview makes up a set of lenses or a veil through which we interpret everything and we can't remove those lenses. Interpretation and perspective are key ideas in postmodern thought and are contrasted with "simple seeing" or a purely objective view of reality--something postmodernists reject as impossible.

We only have interconnected beliefs and for each individual, that's what truth is. We can see some similarities here to the coherence theory of truth with its web of interconnected and mutually supported beliefs. But where the coherence theory holds that coherence among beliefs gives us reason to hold that what we believe corresponds to some external reality, postmodernists reject that. In postmodernism there is nothing for our beliefs to correspond to or if there is, our beliefs never get beyond the limits of our minds to enable us to make any claims about that reality.

Community Agreement

Postmodernism differs from radical subjectivism (truth is centered only in what an individual experiences) by allowing that there might be "community agreement" for some truth claims. The idea is that two or more people may be able to agree on a particular truth claim and form a shared agreement that a given proposition is true. To be clear, it's not true because they agree it maps or corresponds to reality. But since the group all agree that a given proposition or argument works in some practical way, or has explanatory power (seems to explain some particular thing), or has strong intuitive force for them, they can use this shared agreement to form a knowledge community.

When you think about it, this is how things tend to work. A scientist discovers something she takes to be true and writes a paper explaining why she thinks it's true. Other scientists read her paper, run their own experiments and either validate her claims or are unable to invalidate her claims. These scientists then declare the theory "valid" or "significant" or give it some other stamp of approval. In most cases, this does not mean the theory is immune from falsification or to being disproved--it's not absolute. It just means that the majority of the scientific community that have studied the theory agree that it’s true given what they currently understand. This shared agreement creates a communal "truth" for those scientists. This is what led Richard Rorty to state the oft-quoted phrase, "Truth is what my colleagues will let me get away with."

Practical Concerns

Philosophers are supposed to love wisdom and wisdom is more oriented towards the practical than the theoretical. This article has been largely about a theoretical view of truth so how do we apply it? Most people don't spend a whole lot of time thinking about what truth is but tend to get by in the world without that understanding. That's probably because the world seems to impose itself on us rather than being subject to some theory we might come up with about how it has to operate. We all need food, water and shelter, meaning, friendship, and some purpose that compels us to get out of bed in the morning. This is a kind of practical truth that is not subject to the fluidity of philosophical theory.

Even so, we all contend with truth claims on a daily basis. We have to make decisions about what matters. Maybe you're deeply concerned about politics and what politicians are claiming or what policy should be supported or overturned. Perhaps you care about which athlete should be traded or whether you should eat meat or support the goods produced by a large corporation. You may want to know if God exists and if so, which one. You probably care what your friends or loved ones are saying and whether you can count on them or invest in their relationship. In each of these cases, you will apply a theory of truth whether you realize it or not and so a little reflection on what you think about truth will be important.

Your view of truth will impact how you show up at work and impacts the decisions you make about how to raise your children or deal with a conflict. For example, suppose you're faced with a complex question at work about something you're responsible for. You need to decide whether to ship a product or do more testing. If you're a postmodernist, your worldview may cause you to be more tentative about the conclusions you're drawing about the product's readiness because you understand that your interpretation of the facts you have about the product may be clouded by your own background beliefs. Because of this, you may seek more input or seek more consensus before you move forward. You may find yourself silently scoffing at your boss who makes absolute decisions about the "right" way to move forward because you believe there is no "right" way to do much of anything. There's just each person's interpretation of what is right and whoever has the loudest voice or exerts the most force wins.

An engineer may disagree here. She may argue, as an example, that there is a "right" way to build an airplane and a lot of wrong ways and years of aviation history documents both. Here is an instance where the world imposes itself on us: airplanes built with wings and that follow specific rules of aerodynamics fly and machines that don't follow those "laws" don't. Further most of us would rather fly in airplanes built by engineers that have more of a correspondence view of truth. We want to believe that the engineers that built the plane we're in understand aerodynamics and built a plane that corresponds with the propositions that make up the laws of aerodynamics.

Your view of truth matters. You may be a correspondence theorist when it comes to airplanes but a postmodernist when it comes to ethics or politics. But why hold different views of truth for different aspects of your life? This is where a theory comes in. As you reflect on the problems posed by airplanes and ethics, the readiness of your product to be delivered to consumers and the readiness of your child to be loosed upon the world, about what makes you happy and about your responsibility to your fellow man, you will develop a theory of truth that will help you navigate these situations with more clarity and consistency.


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