I found that the grown-ups had a terrible time, everybody got tired of what he was doing. Klug was the first grown-up whom I met who loved what he was doing, who did not get tired, and who even enjoyed explaining things to me. That I think is when I made up my mind, very firmly, that I wanted to do something that I really did want to do. Not for anyone else’s sake, not for what it may lead to, but because of my inherent interest in the subject.