Evidence Quote by Ralph Waldo Emerson

It is a test of true theories not only to account for but to predict phenomena.

— William Whewell

It is an acknowledged truth in philosophy that a just theory will always be confirmed by experiment.

— Thomas Malthus

Every genuine test of a theory is an attempt to falsify it, or to refute it.

— Karl Popper

There can be theory but, you know, the problem is you've got to be able to test it. So theories are one thing, testing…

— Brian Schmidt

In the end, a theory is accepted not because it is confirmed by conventional empirical tests, but because researchers persuade one another that the…

— Fischer Black

There never comes a point where a theory can be said to be true. The most that one can claim for any theory is…

— A.J. Ayer

A theory is scientific only if it can be disproved. But the moment you try to cover absolutely everything the chances are that you…

— Hermann Bondi

In so far as such a theory is empirically correct it will also tell us what empirical facts it should be possible to observe…

— Talcott Parsons

The truth of a theory can never be proven, for one never knows if future experience will contradict its conclusions.

— Albert Einstein

one of the tests of a theory is that, once grasped, it appears self-evident.

— Arthur Koestler

“Someone who thinks up a new theory is the last person who should be trusted with the job of testing it. A new theory…

— Judith Rich Harris

The test of a theory is its ability to cope with all the relevant phenomena, not its a priori 'reasonableness'. The latter would have…

— John Polkinghorne