"The hardest thing to explain is the obvious."

"The primary purpose of morality is to teach you how to live, not how to die."

"The man who damns money has obtained it dishonorably; the man who respects it has earned it."

"I am not primarily an advocate of capitalism, but of egoism; and I am not primarily an advocate of egoism, but of reason."

"Every man is an end in himself, not the means to the ends of others."