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

"The doctrine of equality! There exists no more poisonous poison."

"The greatest danger for all higher men is that they are called to be judges and executioners of their own time."

"Man's maturity: to have reacquired the seriousness that one had as a child at play."

"It is inhuman to bless when one is being cursed."