.. we shall not be properly educated ourselves, nor will the guardians whom we are training, until we can recognise the qualities of discipline, courage, generosity, greatness of mind, and others akin to them, as well as their opposites in all their manifestations.

For all good and evil, whether in the body or in human nature, originates ... in the soul, and overflows from thence, as from the head into the eyes.

The greatest penalty of evil-doing is to grow into the likeness of a bad man.

He who does not desire power is fit to hold it.

Entire ignorance is not so terrible or extreme an evil, and is far from being the greatest of all.

The wisdom of men is worth little or nothing.

Music gives wings to the mind and flight to the imagination.