There is an error common to both oligarchies and to democracies: in the latter the demagogues, when the multitude are above the law, are always cutting the city in two by quarrels with the rich, whereas they should always profess to be maintaining their cause; just as in oligarchies the oligarchs should profess to maintain the cause of the people, . .

It will contribute towards one's object, who wishes to acquire a facility in the gaining of knowledge, to doubt judiciously.

You will never do anything in this world without courage. It is the greatest quality of the mind next to honor.

Youth should stay away from all evil, especially things that produce wickedness and ill-will.

Man first begins to philosophize when the necessities of life are supplied.

Ancient laws remain in force long after the people have the power to change them.

Now the soul of man is divided into two parts, one of which has a rational principle in itself, and the other, not having a rational principle in itself, is able to obey such a principle. And we call a man in any way good because he has the virtues of these two parts.