The unexamined life is not worth living.

I know that I do not know.

Imagine prisoners chained underground since childhood, seeing only shadows on a wall and taking them for reality.

Unless philosophers rule as kings, or kings genuinely philosophize, there will be no end to troubles for states.

You will not find thinking apart from Being, in which it is expressed.

-- Parmenides

All is number.

-- Pythagoras

It is not living that matters, but living rightly.

-- Socrates

Evil, too, has its place within the scheme of the Good.

-- Plotinus

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

-- Kitarō Nishida

All determination is negation.

-- Benedictus de Spinoza