People almost always do great things without knowing how to do them, and are quite surprised to have done them.

A philospher sees the Earth as a large planet, travelling through the heavens, covered with fools

I shall leave the world without regret, for it hardly contains a single good listener.

I feel nothing, apart from a certain difficulty in continuing to exist.

Leibniz never married; he had considered it at the age of fifty; but the person he had in mind asked for time to reflect. This gave Leibniz time to reflect, too, and so he never married.

There are three things I have loved but never understood. Art, music and women.

Women react differently: a French woman who sees herself betrayed by her husband will kill his mistress; an Italian will kill her husband; a Spaniard will kill both; and a German will kill herself.