He who says either that the time for philosophy has not yet come or that it has passed is like someone who says that the time for happiness has not yet come or that it has passed.

Freedom is the greatest fruit of self sufficiency.

If death causes you no pain when you're dead, it is foolish to allow the fear of it to cause you pain now.

Happiness is man's greatest aim in life. Tranquility and rationality are the cornerstones of happiness.

The summit of pleasure is the elimination of all that gives pain.

Never say that I have taken it, only that I have given it back.

In a philosophical dispute, he gains most who is defeated, since he learns most.