I like his description of one unfortunate aspect of American culture he discovered on his first visit:
"...for the first time in my life I was confronted with a civilization that did not give its scientists the automatic benefit of the doubt or the respect that I was used to. On that trip I learned the word "egg-head" as a truly untranslatable Americanism...I was shocked to see how intellectuals could be-—as it were—-by definition suspect, and I remember that the feeling of uncertainty from which I saw my colleagues suffer, worried me very much."