Learning is not child's play; we cannot learn without pain.
The true end of tragedy is to purify the passions.
The physician heals, Nature makes well.
The virtue of the good man is necessarily the same as the virtue of the citizen of the perfect state.
The proof that the state is a creation of nature and prior to the individual is that the individual, when isolated, is not self-sufficing.
And this lies in the nature of things: What people are potentially is revealed in actuality by what they produce.