“I took my job of self-education very seriously. I got myself a small looseleaf notebook, and on each page I wrote the salient data about a given bond issue in convenient form to be memorized. After all these years, I can still remember the appearance of that black notebook and some of the entries in it. The first was ‘Atchison, Topeka, & Santa Fe, General 4s, due 1995: 150 mil.’ There must have been a hundred different issues entered; I memorized their size, interest, maturity date, and order of lien. Why I wanted to memorize facts that could be readily obtained from manuals or my notebook I am at a loss to explain… … Read the rest of this article!