One trait in the philosopher's character we can assume is his love of the knowledge that reveals eternal reality, the realm unaffected by change and decay.

A house that has a library in it has a soul.

No one knows whether death is really the greatest blessing a man can have, but they fear it is the greatest curse, as if they knew well.

Courage is a kind of salvation.

To be at once exceedingly wealthy and good is impossible.

[Not enough is known about solid geometry] and for two reasons: in the first place, no government places value on it; this leads to a lack of energy in the pursuit of it, and it is difficult. In the second place, students cannot learn it unless they have a teacher. But then a teacher can hardly be found.

Love: a grave mental disease.