And it is a characteristic of man that he alone has any sense of good and evil, of just and unjust, and the like, and the association of living beings who have this sense makes a family and a state.
Happiness does not lie in amusement; it would be strange if one were to take trouble and suffer hardship all one's life in order to amuse oneself.
The life of active virtue is essentially pleasant.
Learning is an ornament in prosperity, a refuge in adversity, and a provision in old age.
Poverty is the parent of revolution and crime.
It is impossible, or not easy, to alter by argument what has long been absorbed by habit.