Doe Quote by Francisco J. Ayala

In real science a hypothesis can never be proved true...A science which confines itself to correlating phenomena can never learn anything about the reality…

— James Jeans

I don't believe in empirical science. I only believe in a priori truth.

— Kurt Gödel

A system is empirical or scientific only if it is capable of being tested by experience. These considerations suggest that not the verifiability but…

— Karl Popper

Now obviously the propositions of the system have reference to matters of empirical fact; if they did not, they could have no claim to…

— Talcott Parsons

A hypothesis or theory is clear, decisive, and positive, but it is believed by no one but the man who created it. Experimental findings,…

— Harlow Shapley

A hypothesis is something which looks as if it might be true and were true, and which is capable of verification or refutation by…

— Charles Sanders Peirce

In fact, of course, I hold that propositions that contemporary philosophers would properly count as 'empirical' can be necessary and be known to be…

— Saul Kripke

... scientific research is compounded of ... empirical procedures, general speculative ideas, and mathematical or abstract reasoning.

— James Bryant Conant

[Coining phrase "null hypothesis"] In relation to any experiment we may speak of this hypothesis as the "null hypothesis," and it should be noted…

— Ronald Fisher

Empirical science is apt to cloud the sight, and, by the very knowledge of functions and processes, to bereave the student of themanly contemplation…

— Ralph Waldo Emerson

A good hypothesis in science must have other properties than those of the phenomenon it is immediately invoked to explain, otherwise it is not…

— William James

The fundamental principle of science, the definition almost, is this: the sole test of the validity of any idea is experiment.

— Richard P. Feynman