Paul Auster:

Each book is a new book. I’ve never written it before and I have to teach myself how to write it as I go along. The fact that I’ve written books in the past seems to play no part in it. I always feel like a beginner and I’m continually running into the same difficulties, the same blocks, the same despairs. You make so many mistakes as a writer, cross out so many bad sentences and ideas, discard so many worthless pages, that finally what you learn is how stupid you are. It’s a humbling occupation.