Genius and madness have something in common: both live in a world that is different from that which exists for everyone else.

Every parting gives a foretaste of death, every reunion a hint of the resurrection.

Most men are so thoroughly subjective that nothing really interests them but themselves.

Sexual passion is the cause of war and the end of peace, the basis of what is serious... and consequently the concentration of all desire

The difficulty is to try and teach the multitude that something can be true and untrue at the same time.

In action a great heart is the chief qualification. In work, a great head.

If anyone spends almost the whole day in reading...he gradually loses the capacity for thinking...This is the case with many learned persons; they have read themselves stupid