This is the text of the speech given by Steven Weinberg at the recent celebration to commemorate the 50th Anniversary of the BCS Theory of Superconductivity. Considering it came from him, it should smash once and for all, the silly notion that condensed matter physics does not produce fundamental knowledge that is as important as those that came out of high energy/elementary particle physics. People who still think that they should only go into elementary particles/field theory/string/etc. to study something the most fundamental aspect of our universe should read this article carefully. Zz.