Pleasure causes us to do base actions and pain causes us to abstain from doing noble actions.

So virtue is a purposive disposition, lying in a mean that is relative to us and determined by a rational principle, and by that which a prudent man would use to determine it. It is a mean between two kinds of vice, one of excess and the other of deficiency.

Youth should be kept strangers to all that is bad, and especially to things which suggest vice or hate. When the five years have passed away, during the two following years they must look on at the pursuits which they are hereafter to learn. There are two periods of life with reference to which education has to be divided, from seven to the age of puberty, and onwards to the age of one and twenty.

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.

He who is by nature not his own but another's man is by nature a slave.

Money is a guarantee that we can have what we want in the future

We must not feel a childish disgust at the investigations of the meaner animals. For there is something marvelous in all natural things.