Men never do evil so completely and cheerfully as when they do it from religious conviction.

Men never do evil so completely and cheerfully as when they do it from a religious conviction

If it is an extraordinary blindness to live without investigating what we are, it is a terrible one to live an evil life, while believing in God

All human evil comes from a single cause, man's inability to sit still in a room.

I have discovered that all human evil comes from this, man's being unable to sit still in a room.

Truly it is an evil to be full of faults; but it is a still greater evil to be full of them and to be unwilling to recognize them, since that is to add the further fault of a voluntary illusion.