It so happened that we had a very good math teacher, who was a Communist. I remember having learned from him something that I never forget: the rule of nines. A simple point: you add up the numerals in a number, and if the original number was divisible by nine, then the sum of the figures also is. For instance, you take a number like 243. Two and four and three is nine. Therefore, 243 must be divisible by nine. Actually it is nine times 27. The rule is interesting because it’s so simple. What was really interesting to us ten-year-olds is that our math teacher proved it. The proof is not terribly difficult, but it was one of the first simple and not quite obvious mathematical proofs that I encountered.

My father was a great educator for me. He taught me so many things. He named me Carlos after a brother he lost — a very brilliant young man who died at 21 in Mexico. He had written very good poems. He was an intellectual. I think my father wanted to see his brother in me, so he put books into my hands at a very early age. He fostered my literary and artistic inclinations. So he was my best teacher.

Well, I had a couple. I had a couple teachers who did inspire me. One was this eleventh grade English teacher — eleventh and twelfth grade. She and I, we still have tea together sometimes today. I was frightened before I went into her class. I heard she was a battle axe. I heard that she would flunk you if you split an infinitive. And it’s true. She would, but she also would tell you what a split infinitive was, and then once you knew, you never did it again. She just opened up to me, how language — how the written word — can also sing. And she spent, I remember once, 45 minutes on one page: the first page of a novel. By the end of the class, no one had taken down a single note, because we were absolutely enthralled. It was incredible.

Yes, there were. In kindergarten, there was a teacher named Miss Shackleford, as I always called her. I honestly cannot remember her first name, although I saw her years later. She took a special interest in me very early, which made me feel very special. Maybe I can really do things with these words, and so on, and ended up combining my kindergarten and first grade into one year. Which I don’t really advocate, because you end up being smaller, a year younger than the people you’re competing with. But anyway, she got me off to a good start.