If you watch the video attached in the footnotes, Dyson says, w.r.t the strong force's explanation, that "quarks were invented", rather than "quarks were discov

If you watch the video attached in the footnotes, Dyson says, w.r.t the strong force's explanation, that "quarks were invented", rather than "quarks were discovered". This isn't a slip of the tongue, as later in the interview he restates the same claim in paraphrase. In that use of the word "invent" there is a deep understanding of how physicists view reality - perhaps as it ought to be. I believe that his use of the word "invention" is a mark of humility, and not hubris. The quark was invented and is a useful approximation to reality, but also that maybe someone else will come along, at a later time, and "invent" something a little bit closer to reality.