A man who dares to waste one hour of time has not discovered the value of life.
I love fools' experiments. I am always making them.
An American monkey, after getting drunk on brandy, would never touch it again, and thus is much wiser than most men.
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.