Between friends there is no need of justice.

In order to be effective you need not only virtue but also mental strength.

Law is mind without reason.

What is common to many is least taken care of, for all men have greater regard for what is their own than what they possess in common with others.

Excellence or virtue in a man will be the disposition which renders him a good man and also which will cause him to perform his function well.

How strange it is that Socrates, after having made the children common, should hinder lovers from carnal intercourse only, but should permit love and familiarities between father and son or between brother and brother, than which nothing can be more unseemly, since even without them love of this sort is improper. How strange, too, to forbid intercourse for no other reason than the violence of the pleasure, as though the relationship of father and son or of brothers with one another made no difference.

No one chooses what does not rest with himself, but only what he thinks can be attained by his own act.