“Go up close to your friend but do not go over to him! We should respect the enemy that is in our friend”

“You should seek your enemy, you should wage your war - a war for your opinions. And when your opinion is defeated, our honesty should still cry triumph over that!”

“The man of knowledge must be able not only to love his enemies but also to hate his friends.”

“A friend should be a master at guessing and keeping still: you must not want to see everything.”

“Oh, my friends, that your self be in your deed as the mother is in her child - let that be your word concerning virtue!”

“Do you want to go along with others? or go on ahead? or go off on your own?...you must know what you want and that you want. Fourth question for the conscience.”

“I love those who do not know how to live, except by going under, for they are those who cross over.”