“[T]he infliction of cruelty with a good conscience is a delight to moralists. That is why they invented Hell.”

“Speaking psycho-analytically, it may be laid down that any "great ideal" which people mention with awe is really an excuse for inflicting pain on their enemies. Good wine needs no bush, and good morals need no bated breath.”

“How much longer is the world willing to endure this spectacle of wanton cruelty?”

“The essence of the conception of righteousness, therefore, is to afford an outlet for sadism by cloaking cruelty as justice.”

“Fear is the main source of superstition, and one of the main sources of cruelty. To conquer fear is the beginning of wisdom.”

“Most of the greatest evils that man has inflicted upon man have come through people feeling quite certain about something which, in fact, was false.”

“There are a great many ways in which, the church, by its insistence upon what it chooses to call morality, inflicts upon all sorts of people undeserved and unnecessary suffering.”