Famous Quotes & Sayings

Richard P. Feynman

Another thing I must point out is that you cannot prove a vague theory wrong.

Samuel Johnson

He that travels in theory has no inconveniences.

Winston Churchill

We are stripped bare by the curse of plenty. [Referring to the theory that over-production caused the Depression]

Manly Hall

The end of science is not to prove a theory, but to improve mankind.

Friedrich August von Hayek

I can have little patience with those who oppose ... the theory of evolution or what are called "mechanistic" explanations of the phenomena of life because of certain moral consequences which at first seem to follow from these theories, and still less with those who regard it as irrelevant or impious to ask certain questions at all. By refusing to face the facts , the conservative only weakens his own position.

John Brunner

If the evidence says you're wrong, you don't have the right theory. You change the theory, not the evidence.

Olga Kurylenko

I'm a bit of a romantic. In theory!

Kenneth R. Miller

We don't regard any scientific theory as the absolute truth

Kurt Lewin

There is nothing so practical as a good theory.

Kristanna Loken

I never really was much of a practical jokester or anything.

China Machado

I'm practical. I see something, and I do it.

Baruch Spinoza

In practical life we are compelled to follow what is most probable ; in speculative thought we are compelled to follow truth.