“Doubt is brother-devil to Despair.”

“Men, said the Devil,
are good to their brothers:
they don’t want to mend
their own ways, but each other's.”

“To doubt
Is worse than to have lost; and to despair
Is but to antedate those miseries
That must fall on us.”

“The Devil is not the Prince of Matter; the Devil is the arrogance of the spirit, faith without smile, truth that is never seized by doubt. The Devil is grim because he knows where he is going, and, in moving, he always returns whence he came.”

“If there is a devil, then there is no doubt that God really exists too. Otherwise, he won't be here in the first place.”

“We are commanded to have only one enemy, the devil. With him never be reconciled! But with a brother, never be at enmity in thy heart.”

“The arrogance of poets is only a defense; doubt gnaws the greatest among them; they need our testimony to escape despair.”

“The church has become a more…exclusive club since the founder’s day, it’s clear. No doubt the Devil is more hospitable.”

“… man is the animal that moralizes. Man is also the animal that complains about being one, and says that there is an animal, a beast inside him—that he is brother to dragons. (He is certainly a brother to wolves, and to pandas too, but he is father to dragons, not brother: they, like many gods and devils, are inventions of his.)”

“If this “sacred” book teaches man to enslave his brother, it is not inspired. A god who would establish slavery is as cruel and heartless as any devil could be.”