Youth is like spring, an over praised season more remarkable for biting winds than genial breezes. Autumn is the mellower season, and what we lose in flowers we more than gain in fruits.

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.

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

You cannot have a thing "matter" by itself which shall have no motion in it, nor yet a thing "motion" by itself which shall exist apart from matter; you must have both or neither. You can have matter moving much, or little, and in all conceivable ways; but you cannot have matter without any motion more than you can have motion without any matter that is moving.

It is death, and not what comes after death, that men are generally afraid of.

The course of true anything never does run smooth.

They say the test of [literary power] is whether a man can write an inscription. I say, "Can he name a kitten?" And by this test I am condemned, for I cannot.