The unexamined life is not worth living.

I know that I do not know.

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

There is no envy in the good.

For thinking and Being are the same.

-- Parmenides

You must learn all things: both the steadfast heart of well-rounded Truth and the opinions of mortals, in which there is no true trust.

-- Parmenides

I know that I know nothing.

-- Socrates

Color exists by convention, sweet by convention, bitter by convention; in reality there are only atoms and void.

-- Democritus

Life is an unfoldment, and the further we travel the more truth we can comprehend.

-- Hypatia

Those who understand that things arise dependently know them to be empty.

-- Nagarjuna