Try to learn something about everything and everything about something.

The great tragedy of science - the slaying of a beautiful hypothesis by an ugly fact.

If a little knowledge is dangerous, where is the man who has so much as to be out of danger?

Irrationally held truths may be more harmful than reasoned errors.

Science is simply common sense at its best, that is, rigidly accurate in observation, and merciless to fallacy in logic.

Every great advance in natural knowledge has involved the absolute rejection of authority.

History warns us that it is the customary fate of new truths to begin as heresies and to end as superstitions.

Science commits suicide when it adopts a creed.

It is not who is right, but what is right, that is of importance.

Patience and tenacity are worth more than twice their weight of cleverness.

Thomas Huxley

A man who dares to waste one hour of time has not discovered the value of life.

It is not the strongest of the species that survive, nor the most intelligent, but the one most responsive to change.

We must, however, acknowledge, as it seems to me, that man with all his noble qualities... still bears in his bodily frame the indelible stamp of his lowly origin.

The highest possible stage in moral culture is when we recognize that we ought to control our thoughts.

The mystery of the beginning of all things is insoluble by us; and I for one must be content to remain an agnostic.

I love fools' experiments. I am always making them.

A scientific man ought to have no wishes, no affections, - a mere heart of stone.

A man's friendships are one of the best measures of his worth.

I have called this principle, by which, each slight variation, if useful, is preserved, by the term of Natural Selection.

An American monkey, after getting drunk on brandy, would never touch it again, and thus is much wiser than most men.

Charles Darwin

When people learn no tools of judgment and merely follow their hopes, the seeds of political manipulation are sown.

The most erroneous stories are those we think we know best - and therefore never scrutinize or question.

Nothing is more dangerous than a dogmatic worldview - nothing more constraining, more blinding to innovation, more destructive of openness to novelty.

Stephen Jay Gould


What can be asserted without evidence can also be dismissed without evidence.

Human decency is not derived from religion. It precedes it.

The essence of the independent mind lies not in what it thinks, but in how it thinks.

To the dumb question, 'Why me?' the cosmos barely bothers to return the reply, 'Why not?'

To 'choose' dogma and faith over doubt and experience is to throw out the ripening vintage and to reach greedily for the Kool-Aid.

I don't think it's possible to have a sense of tragedy without having a sense of humor.

High moral character is not a precondition for great moral accomplishments.

hristopher Hitchens