“Two things are infinite: the universe and human stupidity; and I’m not sure about the universe.”

“The only thing that interferes with my learning is my education.”

“Put your hand on a hot stove for a minute, and it seems like an hour. Sit with a pretty girl for an hour, and it seems like a minute. That’s relativity.”

“Intellectual growth should commence at birth and cease only at death.”

“Science without religion is lame, religion without science is blind.”

“We can’t solve problems by using the same kind of thinking we used when we created them.”

“Logic will get you from A to B. Imagination will take you everywhere.”