The soul of man is immortal and imperishable.

The greatest penalty of evil-doing is to grow into the likeness of bad men, and, growing like them, to fly from the conversation of the good, and be cut off from them, and cleave to and follow after the company of the bad.

Necessity, who is the mother of our invention.

Until philosophers rule as kings or those who are now called kings and leading men genuinely and adequately philosophise, that is, until political power and philosophy entirely coincide, while the many natures who at present pursue either one exclusively are forcibly prevented from doing so, cities will have no rest from evils,... nor, I think, will the human race.

The most effective kind of education is that a child should play amongst lovely things.

If a man neglects education, he walks lame to the end of his life.

Let every man remind their descendants that they also are soldiers who must not desert the ranks of their ancestors, or from cowardice fall behind.