The most important thing I’ve learned about writing is never write too much at a time,” Hemingway said, tapping my arm with his finger. “Never pump yourself dry. Leave a little for the next day. The main thing is to know when to stop. Don’t wait till you’ve written yourself out. When you’re still going good and you come to an interesting place and you know what’s going to happen next, that’s the time to stop. Then leave it alone and don’t think about it; let your subconscious mind do the work. The next morning, when you’ve had a good sleep and you’re feeling fresh, rewrite what you wrote the day before. When you come to the interesting place and you know what is going to happen next, go on from there and stop at another high point of interest. That way, when you get through, your stuff is full of interesting places and when you write a novel you never get stuck and you make it interesting as you go along.