Is there anything worse for a state than to be split and disunited? or anything better than cohesion and unity?

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.

... the good are not willing to rule either for the sake of money or of honor.

There still remain three studies suitable for free man. Arithmetic is one of them.

The makers of fortunes have a second love of money as a creation of their own, resembling the affection of authors for their own poems, or of parents for their children, besides that natural love of it for the sake of use and profit.

Too much attention to health is a hindrance to learning, to invention, and to studies of any kind, for we are always feeling suspicious shootings and swimmings in our heads, and we are prone to blame studies from them.

Better a good enemy than a bad friend.