"The wise man will not groan and howl when he is tortured."

"The wise man laughs at fate, since he knows that some things happen by necessity, others by chance, and others through his own agency."

"It is not possible to live pleasantly without living prudently, honorably, and justly; nor to live prudently, honorably, and justly without living pleasantly."

"The man who says that all things happen of necessity cannot criticize one who says that not all things happen of necessity. For he admits that the very statement he is making is made of necessity."

"It is better to be unhappy in a rational way than happy in an irrational way."