Human behavior flows from three main sources: desire, emotion, and knowledge.
Mob rule and emasculation of the wise' and 'who will watch the guardians'?
Train children not by compulsion but as if they were playing.
Ideas are the source of all things
The science [geometry] is pursued for the sake of the knowledge of what eternally exists, and not of what comes for a moment into existence, and then perishes.
If the head and the body are to be well, you must begin by curing the soul.