"Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius -- and a lot of courage -- to move in the opposite direction." "I want to know God's thoughts; the rest are details." "Science without religion is lame. Religion without science is blind." "The secret to creativity is knowing how to hide your sources." "The only thing that interferes with my learning is my education." "The most incomprehensible thing about the world is that it is comprehensible." "If A is a success in life, then A equals x plus y plus z. Work is x; y is play; and z is keeping your mouth shut." "Two things are infinite: the universe and human stupidity; and I'm not sure about the the universe." "My religion consists of a humble admiration of the illimitable superior spirit who reveals himself in the slight details we are able to perceive with our frail and feeble mind."