I have called this principle by which each slight variation if useful is preserved by the term of N

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

Author: Charles Darwin

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

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

It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is the most adaptable to change.

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