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Therefore psychologically we must keep all the theories in our heads, and every theoretical physicist who is any good knows six or seven different theoretical representations for exactly the same physics.

— Richard Feynman The Character of Physical Law (1965)

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More quotes by Richard Feynman

I don't know anything, but I do know that everything is interesting if you go into it deeply enough.

The Pleasure of Finding Things Out (1999)

The first principle is that you must not fool yourself — and you are the easiest person to fool.

I learned very early the difference between knowing the name of something and knowing something.

What Do You Care What Other People Think? (1988)

Hell, if I could explain it to the average person, it wouldn't have been worth the Nobel prize.

statement (1965)

Tell your son to stop trying to fill your head with science — for to fill your heart with love is enough!

All Richard Feynman quotes →

Attribution

Quote text and notes from Wikiquote: Richard Feynman (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.