Now, I haven't said why I didn't go into physics, and that's rather a complicated story. First of all, my uncle was a brave man with enormous experience, but extraordinarily narrow-minded, and very conscious of reputations. He judged his field by personal knowledge; outside fields by reputations. He believed the experts. And he told me immediately that if I went to the École Normale I must not touch physics, because he said physics at the École Normale is not only not good, it is bad, it's old-fashioned, it is done by people who don't know anything, etc., etc. He was very, very scornful. Probably he was right, because physics then was in a very poor state. It was very difficult to imagine where to study physics in Paris in 1945, in a kind of great fashion. Physics came back to France only several years later - theoretical physics, I mean. Experimental physics again was beginning with Leprince-Ringuet. Actually, at the time, I didn't like the associations of physics with the atom bomb. I don't know why I didn't mind airplanes but I did mind the atom bomb. Actually it's a very common attitude of making a sharp distinction, at one level, of arms.