To accept reason is impossible if you don't already possess it.

We usually learn to wait only when we have no longer anything to wait for.

Whoever prefers the material comforts of life over intellectual wealth is like the owner of a palace who moves into the servants’ quarters and leaves the sumptuous rooms empty.

Do not fear the ones who argue, but rather those who are evasive.

How happy are the pessimists! What joy is theirs when they have proved there is no joy.

A man with lofty ideas is an uncomfortable neighbor.

He who believes in freedom of the will has never loved and never hated.