The vices respectively fall short of or exceed what is right in both passions and actions, while virtue both finds and chooses that which is intermediate.

Happiness is an activity of the soul in accordance with virtue

Whereas young people become accomplished in geometry and mathematics, and wise within these limits, prudent young people do not seem to be found. The reason is that prudence is concerned with particulars as well as universals, and particulars become known from experience, but a young person lacks experience, since some length of time is needed to produce it.

If then nature makes nothing without some end in view, nothing to no purpose, it must be that nature has made all of them for the sake of man.

The life of children, as much as that of intemperate men, is wholly governed by their desires.

Because the rich are generally few in number, while the poor are many, they appear to be antagonistic, and as the one or the other prevails they form the government. Hence arises the common opinion that there are two kinds of government - democracy and oligarchy.

Music directly represents the passions of the soul. If one listens to the wrong kind of music, he will become the wrong kind of person.