No evil can happen to a good man either in life or after death.

To do injustice is the greatest of all evils.

And tell him it's quite true that the best of the philosophers are of no use to their fellows; but that he should blame, not the philosophers, but those who fail to make use of them.

The learning and knowledge that we have,is,at the most,but little compared with that of which we are ignorant.

A wise man speaks because he has something to say; a fool because he has to say something.

The philosopher whose dealings are with divine order himself acquires the characteristics of order and divinity.

The human race will have no respite from evils until those who are really philosophers acquire political power or until, through some divine dispensation, those who rule and have political authority in the cities become real philosophers.