"Don't just say you have read books. Show that through them you have learned to think more accurately, to be less of a slave to your passions."

"What would you rather have, a pig that grunts contentedly or a philosopher who complains?"

"When you have said 'Tomorrow I will begin to attend,' you must be told that you are saying this: 'Today I will be shameless, disregardful of time and place, mean; it will be in the power of others to …"

"Freedom and slavery, the one is the name of virtue, and the other of vice, and both are acts of the will."

"To a reasonable creature, that alone is insupportable which is unreasonable; but everything reasonable may be supported."