Music is the movement of sound to reach the soul for the education of its virtue.

Is it not true that the clever rogue is like the runner who runs well for the first half of the course, but flags before reaching the goal: he is quick off the mark, but ends in disgrace and slinks away crestfallen and uncrowned. The crown is the prize of the really good runner who perseveres to the end.

What then is the right way to live? Life should be lived as play.

Any man may easily do harm, but not every man can do good to another.

Excess of liberty, whether it lies in state or individuals, seems only to pass into excess of slavery.

The human race will have no respite from evils until those who are really philosophers acquire political power or until, through some divine dispensation, those who rule and have political authority in the cities become real philosophers.

Prefer diligence before idleness, unless you esteem rust above brightness.