Philip Pullman

Don't listen to any advice, that's what I'd say. Write only what you want to write. Please yourself. YOU are the genius, they're not. Especially don't listen to people (such as publishers) who think that you need to write what readers say they want. Readers don't always know what they want. I don't know what I want to read until I go into a bookshop and look around at the books other people have written, and the books I enjoy reading most are books I would never in a million years have thought of myself. So the only thing you need to do is forget about pleasing other people, and aim to please yourself alone. That way, you'll have a chance of writing something that other people WILL want to read, because it'll take them by surprise. It's also much more fun writing to please yourself.

-Philip Pullman