what are the autumn people?

The discussion about the "autumn people" gets to the heart of the good vs. evil theme that was first introduced near the beginning of the book. In Chapter 37, Charles reflected on the boys and circus freaks and decided that neither was really pure good or pure evil. In Chapter 38, this concept is elaborated upon. Most people are neither all autumn nor all summer. "Most of us are half-and-half. The august noon in us works to stave off the November chills. We survive by what little Fourth of July wits we've stashed away. But there are times when we're all autumn people". Mr. Halloway defines the carnival people as autumn people who are basically "evil"