All things have sprung from nothing and are borne forward to infinity. Who can follow out such an astonishing career? The Author of these wonders, and He alone, can comprehend them.

I have discovered that all human evil comes from this, man's being unable to sit still and quiet in a room alone.

Do you wish men to speak well of you? Then never speak well of yourself.

If you would have people speak well of you, then do not speak well of yourself.

I have made this letter longer than usual because I lack the time to make it short.

The heart has reasons which the reason cannot understand.

Men never do evil so completely and cheerfully as when they do it with religious conviction.

Imagination disposes of everything; it creates beauty, justice, and happiness, which is everything in this world.

The arithmetical machine produces effects that approach nearer to thought than all the actions of animals. But it does nothing that would enable us to attribute will to it, as to the animals.

The heart has its reasons, which reason does not know...All our reasoning ends in surrender to feeling.