The only stable principle of government is equality according to proportion, and for every man to enjoy his own.
All human happiness and misery take the form of action.
In all things of nature there is something of the marvelous.
The final cause, then, produces motion through being loved.
Moral excellence comes about as a result of habit. We become just by doing just acts, temperate by doing temperate acts, brave by doing brave acts.
The one exclusive sign of thorough knowledge is the power of teaching.