Thesis: The five main characters in John Knowles' A Separate Peace represent social stereotypes, according to some people. In his book A Separate Peace, John Knowles represents jocks with Phineas, a character who believes that sports are the key to life. Phineas is more of a sportsman than a jock. Real jocks only care about winning, Phineas makes sure it's not possible for anyone to win or lose. Chet Douglas is an exaggerated prep, just like Phineas is an exaggerated jock. He is obsessed with learning just for the sake of learning. No real ....