Happiness, then, is co-extensive with contemplation, and the more people contemplate, the happier they are; not incidentally, but in virtue of their contemplation, because it is in itself precious. Thus happiness is a form of contemplation.

In order to be effective you need not only virtue but also mental strength.

Moral virtue is a mean . . . between two vices, one of excess and the other of defect; . . . it is such a mean because it aims at hitting the middle point in feelings and in actions. This is why it is a hard task to be good, for it is hard to find the middle point in anything.

When you are lonely, when you feel yourself an alien in the world, play Chess. This will raise your spirits and be your counselor in war

A common danger unites even the bitterest enemies.

For through wondering human beings now and in the beginning have been led to philosophizing.

A bad man can do a million times more harm than a beast.