We will burn that bridge when we come to it.

The history of science is science itself; the history of the individual, the individual.

He who does not expect a million readers should not write a line.

For usually people resist as long as they can to dismiss the fool they harbor in their bosom, they resist to confess a major mistake or to admit a truth that makes them despair.

I have so much in me, and the feeling for her absorbs it all; I have so much, and without her it all comes to nothing.

Nature goes her own way, and all that to us seems an exception is really according to order.

There is nothing in the world more shameful than establishing one's self on lies and fables.