Authors / Richard Feynman

Richard Feynman quotes

1918–1988 · American physicist, Nobel laureate 1965

Feynman was a Nobel physicist, bongo player and safecracker with a gift for explaining hard things simply.

1 real · 1 not theirs

Really theirs

1 quotes traced to Richard Feynman's own work or a reliable witness.

Sourced
The first principle is that you must not fool yourself — and you are the easiest person to fool.
Source: "Cargo Cult Science", Caltech commencement address (1974)

Not theirs

1 famous lines credited to Richard Feynman that are misquoted, unsourced or belong to someone else.

Misquoted
If you think you understand quantum mechanics, you don't understand quantum mechanics.

The real words: In The Character of Physical Law (1965) he said: "I think I can safely say that nobody understands quantum mechanics."