Nothing in life is more necessary than friendship.

Why is it that all men who are outstanding in philosophy, poetry or the arts are melancholic?

Happiness lies in virtuous activity, and perfect happiness lies in the best activity, which is contemplative

He is his own best friend and takes delight in privacy whereas the man of no virtue or ability is his own worst enemy and is afraid of solitude.

Teenagers these days are out of control. They eat like pigs, they are disrespectful of adults, they interrupt and contradict their parents, and they terrorize their teachers.

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.

Good habits formed at youth make all the difference.