If particulars are to have meaning, there must be universals.

And what shall he suffer who slays him who of all men, as they say, is his own best friend? I mean the suicide, who deprives himself by violence of his appointed share of life. Not because the law of the state requires him. Nor yet under the compulsion of some painful and inevitable misfortune which has come upon him. Nor because he has had to suffer from irremediable and intolerable shame, but who from sloth or want of manliness imposes upon himself an unjust penalty.

The worst of all deceptions is self-deception.

He, O men, is the wisest, who, like Socrates, knows that his wisdom is in truth worth nothing.

You cannot conceive the many without the one...The study of the unit is among those that lead the mind on and turn it to the vision of reality.

Of all the things which a man has, next to the gods his soul is the most divine and most truly his own.

Only a philosopher's mind grows wings, since its memory always keeps it as close as possible to those realities by being close to which the gods are divine.