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

Charles Darwin

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

Charles Darwin

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

Charles Darwin

Animals, whom we have made our slaves, we do not like to consider our equal.

Charles Darwin

It is a cursed evil to any man to become as absorbed in any subject as I am in mine.

Charles Darwin

On the ordinary view of each species having been independently created, we gain no scientific explanation.

Charles Darwin

Man tends to increase at a greater rate than his means of subsistence.

Charles Darwin

The very essence of instinct is that it's followed independently of reason.

Charles Darwin

To kill an error is as good a service as, and sometimes even better than, the establishing of a new truth or fact.

Charles Darwin

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

Charles Darwin

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.

Charles Darwin

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

Charles Darwin