*We decided that “trivial” means “proved.” So we joked with the mathematicians: “We have a new theorem - that mathematicians can prove only trivial theorems, because every theorem that’s proved is trivial.” The mathematicians didn't like that theorem.*

The above quote about the different meaning "trivial" can have in a mathematical sense is taken from *Surely You're Joking, Mr. [BLANK]!*, the autobiography of WHAT SCIENTIST who shared the 1965 Nobel Prize in Physics with Julian Schwinger and Sin-Itiro Tomonaga?

RICHARD FEYNMAN