It would now be technically possible to unify the world, abolish war and poverty altogether, if men desired their own happiness more than the misery of their enemies.

Zeno was concerned with three problems... These are the problem of the infinitesimal, the infinite, and continuity.

True happiness for human beings is possible only to those who develop their godlike potentialities to the utmost.

For the learning of every virtue there is an appropriate discipline, and for the learning of suspended judgment the best discipline is philosophy.

Contempt for happiness is usually contempt for other people's happiness, and is an elegant disguise for hatred of the human race.

[There has been] every kind of cruelty practiced upon all sorts of people in the name of religion.

Always remember that true happiness is not in getting what you want, but wanting what you already have. He who dies with the most toys is still dead. What is wanted is not the will to believe, but the will to find out, which is the exact opposite.