If Chrysippus had not existed, the Stoa would not have existed.

Fate is a natural order of all things, following one upon another from eternity, and their intertwining is inviolable.

If one had the logic of Chrysippus, one would not need the gods.

The universe itself is God and the universal outpouring of its soul.

Neither a man nor a crowd nor a nation can be trusted to act humanely or to think sanely under the influence of a great fear.

-- Bertrand Russell

I have striven not to laugh at human actions, not to weep at them, nor to hate them, but to understand them.

-- Benedictus de Spinoza

The divine law commands rational consideration of existing things and reflection upon them.

-- Averroes

The pleasant life is produced not by endless drinking and revelry but by sober reasoning.

-- Epicurus

The good, in a word, is the realization of personality.

-- Kitarō Nishida

It is better to be a human being dissatisfied than a pig satisfied; better to be Socrates dissatisfied than a fool satisfied.

-- John Stuart Mill