“Before God we are all equally wise—and equally foolish.”
“I never think of the future—it comes soon enough.”
"If we knew what it was we were doing, it would not be called research, would it?"
"If World War III is fought with nuclear weapons, then World War IV will be fought with stones."
“Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.”
“The hardest thing in the world to understand is the income tax.”
"The secret to creativity is knowing how to hide your sources."
“The release of atomic energy has not created a new problem. It has merely made more urgent the necessity of solving an existing one.”
"The wireless telegraph is not difficult to understand. The ordinary telegraph is like a very long cat. You pull the tail in New York, and it meows in Los Angeles. The wireless is the same, only without the cat."
"You spend 30 minutes with a beautiful girl, it seems like a moment. You spend a moment sitting on a hot stove, it seems like 30 minutes."
—Giving the most practical, understandable explanation of the Theory of Relativity: how time can expand or contract
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