Feynman presents a strong preference for verifying claims through his own reasoning rather than accepting them solely because they come from recognised experts. The remark reflects his broader habit of checking assumptions, calculations and explanations for himself, particularly when a result can be tested directly.

The statement is deliberately sweeping, but its underlying point is not that expertise has no value. Rather, it challenges reliance on authority as a substitute for understanding. Experts can make mistakes, and confidence or professional status does not by itself establish that a conclusion is correct. Feynman’s response is to reconstruct the reasoning independently where possible and compare it with the stated result. The quotation therefore illustrates a form of disciplined scepticism: respect evidence and sound argument, but remain willing to examine claims for yourself instead of treating authority as final proof.