"I memorize my lines and I show up. I think it's just instinctual, and sometimes it's wrong and the director says, "No, do it this way." And then I can change, because I didn't spend all night practicing it this one way. All I do to get ready for the day is the night before, I read my lines once or twice, memorize them, and then I show up."

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[Max Planck] was one of the finest people I have ever known... but he really didn't understand physics, [because] during the eclipse of 1919 he stayed up all night to see if it would confirm the bending of light by the gravitational field. If he had really understood [general relativity], he would have gone to bed the way I did

— Albert Einstein