"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."

"To be happy, we must take care of our bodies and our souls."

"Death is nothing to us; for that which is dissolved is without sensation, and that which lacks sensation is nothing to us."

"We must not violate nature, but obey her."

"Justice is a contract of utility entered into to prevent men from harming or being harmed by one another."