Randall Garrett, The man who knew everything (1956)
“ It wasn't that Phil Merriwether was really stupid; he was simply afflicted with an incredibly bad memory. He could forget more in five minutes than he could learn in five years. Oh, he could remember commonplace things easily enough—his name, where he lived, things like that. He could read and write tolerably well, although his spelling was intolerable. He could add and subtract with fair ease, but, having forgotten most of the multiplication table, he found "higher mathematics," such as long division, almost impossible to do without hours of laborious thinking. ”
