A young man is not a proper hearer of lectures on political science; for he is inexperienced in the actions that occur in life, but its discussions start from these and are about these; and, further, since he tends to follow his passions, his study will be vain and unprofitable, because the end that is aimed at is not knowledge but action. And it makes no difference whether he is young in years or youthful in character.

Praise invariably implies a reference to a higher standard.

Adventure is worthwhile.

People do not naturally become morally excellent or practically wise. They become so, if at all, only as the result of lifelong personal and community effort.

It is not sufficient to know what one ought to say, but one must also know how to say it.

In the Laws it is maintained that the best constitution is made up of democracy and tyranny, which are either not constitutions at all, or are the worst of all. But they are nearer the truth who combine many forms; for the constitution is better which is made up of more numerous elements. The constitution proposed in the Laws has no element of monarchy at all; it is nothing but oligarchy and democracy, leaning rather to oligarchy.

Boundaries don't protect rivers, people do.