He was, according to students, an extraordinary teacher, rigorous, picky, not mean-but a teaser. Sometimes. "What did he really mean by that?" a student whispered to me once when I visited his class. "You can write anything you want but you may not mention the weather," he told his classes at City College in New York and at the University of Houston. The weather, the very geography of platitude. Still, he knew about those easy clichés. He knew their ancient usefulness and perseverance. He grabbed them, gave them a good half turn to laugh a social truth into a sentence-he was certainly a sentence maker.