Happiness is the settling of the soul into its most appropriate spot.

This world is inescapably linked to the motions of the worlds above. All power in this world is ruled by these options.

Virtue is more clearly shown in the performance of fine ACTIONS than in the non-performance of base ones.

It is not easy for a person to do any great harm when his tenure of office is short, whereas long possession begets tyranny.

A good character carries with it the highest power of causing a thing to be believed.

It is clear, then, that the earth must be at the centre and immovable, not only for the reasons already given, but also because heavy bodies forcibly thrown quite straight upward return to the point from which they started, even if they are thrown to an infinite distance. From these considerations then it is clear that the earth does not move and does not lie elsewhere than at the centre.

... the friendship of worthless people has a bad effect (because they take part, unstable as they are, in worthless pursuits, and actually become bad through each other's influence). But the friendship of the good is good, and increases in goodness because of their association. They seem even to become better men by exercising their friendship and improving each other; for the traits that they admire in each other get transferred to themselves.