What makes something true
Is a belief true because it matches how things really are, or because it fits with our other beliefs or works for us? The main answers are the correspondence, coherence and pragmatic theories.
What it is
We say that some beliefs are true and others false, and we mostly know the difference when we meet it. 'The kettle is boiling' is true if the kettle is boiling. The harder question is what truth is. Is it simply a match between what we say and how things are? Or is it something about how our beliefs hang together, or how well they work in practice?
The question matters because it changes how we think about disagreement. If truth is matching reality, one side of a dispute can simply be wrong. If truth depends more on us, the picture is more complicated.
The main views
- Correspondence. A statement is true when it corresponds to a fact, to the way things are. This is the oldest and most common view, going back to Plato and Aristotle, and later defended by Russell and Wittgenstein.
- Coherence. A belief is true if it fits with the rest of a system of beliefs. Truth lies in the relations among beliefs, not in a direct match with the world.
- Pragmatic. A belief is true if believing it works, if it is useful, or if careful inquiry would in the end settle on it. Peirce and James are the best-known pragmatists.
- Deflationary. Calling a statement true adds nothing to the statement itself. 'It is true that snow is white' says no more than 'snow is white'. There is no deep property of truth to explain.
An example
Suppose two people disagree about whether a bridge is safe. On the correspondence view there is a fact about the bridge, and one of them is right whatever anyone thinks. A coherence theorist would say we judge by how the claim fits with everything else we know about bridges and engineering. A pragmatist would ask what happens if we act on each belief, and the result of careful testing would settle it.
Why people still disagree
- Correspondence is hard to explain. It is unclear what exactly 'corresponds' means, and what facts are. It also fits poorly with moral, logical and mathematical truths, where there seems to be nothing physical to match.
- The alternatives have costs too. Coherence can seem to allow different truths for different people, if their systems of belief differ. And useful beliefs can be false: a comforting belief may work well and still be wrong.
- Some doubt the question. Deflationists say that we have been looking for a deep theory where there is only a simple word.
Written by epchē in our own words, and checked against independent sources on 8 October 2026. The sources are listed below.
Philosophies that answer it
Where each philosophy leans on this question, from the same positions the walk uses.
Truth depends on us
Truth matches reality
Sources we used
- The Correspondence Theory of Truth · Stanford Encyclopedia of Philosophy, read on 8 October 2026
- Truth · Internet Encyclopedia of Philosophy, read on 8 October 2026