“My mother neither encouraged the reading of science fiction nor did she disparage it. She told me later that there was a scheme of things. Young people were first drawn to fiction, but as they grew older they were pulled more and more into nonfiction and biography, because nonfiction is so much more tragic, engrossing, and hilarious than anything else that could be invented. In this grand scheme, comic books and science fiction were just fine. They filled the need for a certain amount of time, and you moved on when that need was no longer filled.”