“No man is a devil in his own mind.”
“Man provides his own goods and his own evils, neither God nor the Devil has anything to do with it.”
“A man is likely to mind his own business when it is worth minding. When it is not, he takes his mind off his own meaningless affairs by minding other people's business.”
“I man is a prisoner of only his own mind.”
“I think the devil doesn't exist, but man has created him, he has created him in his own image and likeness.”
“If a man's at odds to know his own mind it's because he hasn't got aught but his mind to know it with.”