The happiness of a man in this life does not consist in the absence but in the mastery of his passions.

The wealthy seldom possess wealth: oftener they are possessed by it.

All boundaries are conventions. One may transcend any convention if only one can first conceive of doing so.

All that is necessary is to accept the impossible, do without the indispensable, and bear the intolerable.

We live in an age when unnecessary things are our only necessities.

The reports of my death have been greatly exaggerated.

Freedom is the greatest fruit of self-sufficiency.