When studying the parton model，Feynman discussed with me several times and even invited me to his home，spending a whole day listening to me the details of the works done by T.T.Wu and me，including those published and not yet.In a later Stony Brook conference (1969)，he gave a talk in which my name and Wu’s name were mentioned more than ten times.However，in the published papers，he never mentioned our names，never cited our works，and in private he never explained to us.