Apply yourself both now and in the next life. Without effort, you cannot be prosperous. Though the land be good, you cannot have an abundant crop without cultivation.

The well-nurtured youth is one who would see most clearly whatever was amiss in ill-made works of man or ill-grown works of nature, and with a just distaste would blame and hate the ugly even from his earliest years and would give delighted praise to beauty, receiving it into his soul and being nourished by it, so that he became a man of gentle heart.

I prefer nothing, unless it is true.

All I would ask you to be thinking of is the truth and not Socrates.

One cannot make a slave of a free person, for a free person is free even in a prison.

To the rulers of the state then, if to any, it belongs of right to use falsehood, to deceive either enemies or their own citizens, for the good of the state: and no one else may meddle with this privilege.

Arithmetic is a kind of knowledge in which the best natures should be trained, and which must not be given up.