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

Haruki Murakami

A theory is a battlefield in your head.

Mahatma Gandhi

Ahimsa in theory no one knows. It is as indefinable as God.

Edward Weston

I am not limiting myself to theories, so I never question the rightness to my approach.

The classical theory of omniscient rationality is strikingly simple and beautiful.

Chaim Weizmann

Einstein explained his theory to me every day, and on my arrival I was fully convinced that he understood it.

Charles Darwin

If it could be demonstrated that any complex organ existed, which could not possibly have been formed by numerous, successive, slight modifications, my theory would absolutely break down. But I can find no such case.

Gary L. Francione

The proposition that humans have mental characteristics wholly absent in non-humans is inconsistent with the theory of evolution.

Asa Butterfield

My theory. Music can fix anything. Anything.

Daniel Handler

Everybody has a theory.

Stephen Jay Gould

The modern theory of evolution does not require gradual change. It in fact, the operation of Darwinian processes should yield exactly what we see in the fossil record. It is gradualism that we must reject, not Darwinism.

Albert Einstein

Classical thermodynamics ... is the only physical theory of universal content which I am convinced ... will never be overthrown.

Albert Einstein

The most practical solution is a good theory.

Albert Einstein

The economists will have to revise their theories of value.

Albert Einstein

A theory is the more impressive the greater the simplicty of its premises is.

Albert Einstein

Since others have explained my theory, I can no longer understand it myself.

Don DeLillo

That's what in theory differentiates a writer from everyone else. You see and hear more clearly.

Dorothy L. Sayers

Very dangerous things, theories.

Claude Bernard

We must alter theory to adapt it to nature, but not nature to adapt it to theory.‎

Albert Bandura

We are more heavily invested in the theories of failure than we are in the theories of success.

E. F. Schumacher

It is amazing how much theory we can do without when work actually begins.

Robert Anton Wilson

There is no complete theory of anything.

Stephen Leacock

Professors of theory merely hold post-mortems.

Roy Spencer

I finally became convinced that the theory of creation actually had a much better scientific basis than the theory of evolution, for the creation model was actually better able to explain the physical and biological complexity in the world...

Steven Pinker

Of course the theory of evolution would be vacuous if it offered a glib explanation for every inexplicable act.

Michael Polanyi

Theories of evolution must provide for the creative acts which brought such theories into existence.