"I learned how important grammar is, that part of the understanding process is grammatical. That’s how I taught myself to write prose. I kept learning and learning. I’d come into my class and say, “Guess what I found out last night. Tenses are a way of ordering the chaos around time.” I learned that grammar was not arbitrary, that it served a purpose, that it helped to form the ways we thought, that it could be freeing as well as restrictive."