There are some centuries which - apart from everything else - in the art and other disciplines presume to remake everything because they know how to make nothing.

No one is so completely disenchanted with the world, or knows it so thoroughly, or is so utterly disgusted with it, that when it begins to smile upon him he does not become partially reconciled to it.

Old age is the supreme evil, for it deprives man of all pleasures while allowing his appetites to remain, and it brings with it every possible sorrow. Yet men fear death and desire old age.

The surest way of concealing from others the boundaries of one's own knowledge is not to overstep them.

L'uomo è infelice perchè è incontentabile.