Earlier quoted context omitted.
Really? Can I ask what you're basing that on? I'm not disbelieving you, just skeptically curious :)
http://www.fotuva.org/online/frameload.htm?/online/science.h... When he talks about his time at Cornell: "She went on and said, "Suppose you have another line coming in from the other side, and you want to figure out where they are going to intersect. Suppose on one line you go over two to the right for every one you go up, and the other line goes over three to the right for every one that it goes up, and they start…
a) tongue in cheek (given that it was an informal talk rather than an essay or article)
b) just a reflection of the general attitudes of the era
c) indeed down to personal prejudice
I'm guessing though that whatever prejudices he had must have been re-evaluated by the time he encouraged his sister to go into science