"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."
"Imagination is more important than knowledge."
"Gravitation is not responsible for people falling in love."
"I want to know God's thoughts; the rest are details."
"The hardest thing in the world to understand is the income tax."
"Reality is merely an illusion, albeit a very persistent one."
"The only real valuable thing is intuition."
"A person starts to live when he can live outside himself."
"I am convinced that He (God) does not play dice."
"God is subtle but he is not malicious."
"Weakness of attitude becomes weakness of character."
"I never think of the future. It comes soon enough."
"The eternal mystery of the world is its comprehensibility."
"Sometimes one pays most for the things one gets for nothing."
"Science without religion is lame. Religion without science is blind."
"Anyone who has never made a mistake has never tried anything new."
"Great spirits have often encountered violent opposition from weak minds."
"Everything should be made as simple as possible, but not simpler."