Every one of my opponents, every one of my critics, will tell you that I am a generalist spread far too thin in an age when this is not done anymore, when responsible knowledge is specialized knowledge.
Given my age, I am pretty near the end, probably, of my career as a writer, a scholar, a teacher. And I wanted to speak of things I will not be able to do.
The age of the book is almost gone.
There are three intellectual pursuits, and, so far as I am aware, only three, in which human beings have performed major feats before the age of puberty. They are music, mathematics, and chess.