"Good and evil, in his view, come only from those things that progress from our will."

"Think of yourself as a slave, and you will not be disturbed by anything that happens to you."

"Freedom is the only worthy goal in life. It is won by disregarding things that are not within our control."

"Only the educated are free."

"If you have assumed a character beyond your strength, you have both dishonored yourself in that, and neglected what you might have done."