The youth of an art is, like the youth of anything else, its most interesting period.

Science is being daily more and more personified and anthromorphized into a god. By and by they will say that science took our nature upon him, and sent down his only begotten son, Charles Darwin, or Huxley, into the world so that those who believe in him, &c.; and they will burn people for saying that science, after all, is only an expression for our ignorance of our own ignorance.

Whatsoever we perpetrate, we do but row; we are steered by fate.

Man, unlike the animals, has never learned that the sole purpose of life is to enjoy it.

Memory and forgetfulness are as life and death to one another. To live is to remember and to remember is to live. To die is to forget and to forget is to die.

In practice it is seldom very hard to do one's duty when one knows what it is, but it is sometimes extremely difficult to find this out.

Arguments are like fire-arms which a man may keep at home but should not carry about with him.