（グロタンとは関係ない話だけど）
経済学者のサミュエルソンが角谷氏に関して、こんなエピソードを紹介しています。
http://nobelprize.org/economics/laureates/1970/samuelson-lecture.pdf　14/16

someone once asked Yale's great mathematician,
Kakutani:"Are you a great mathematician?" Kakutani modestly replied,"Oh,
not at all. I am a nothing, a mediocre plodder after truth." "Well if you're
not a great mathematician, who would you name as one?" he was asked.
Kakutani thought and he thought and he thought, and then according to
the story he finally said‐"Johnny von Neumann."