The One Sentence From Feynman

From Feynman, you will be able to learn very much and not least from what he claimed was the one sentence that would convey deepest scientific knowledge should it all have been lost in some terrible cataclysm. Fuhrer: Problems are solved by incremental detection and correction of errors in existing knowledge. This is how unbounded progress happens and accelerates, forever revealing more and better problems and deepening our understanding.