“... a knowledge of how to live was a knowledge of how to die.”

“There is no knowledge so hard to acquire as the knowledge of how to live this life well and naturally.”

“The only real science is the knowledge of how a person should live his life. And this knowledge is open to everyone.”

“Real wisdom is not the knowledge of everything, but the knowledge of which things in life are necessary, which are less necessary, and which are completely unnecessary to know. Among the most necessary knowledge is the knowledge of how to live well, that is, how to produce the least possible evil and the greatest goodness in one’s life. At present, people study useless sciences, but forget to study this, the most important knowledge.”

“Knowledge itself is never dangerous, it is how that knowledge is used that is dangerous”

“Courage is a special kind of knowledge: the knowledge of how to fear what ought to be feared and how not to fear what ought not to be feared.”