I’ve read The Writing Life by Annie Dillard several times — and sometimes just pick it up and read a few sections. The book is Dillard’s memoir about her life as a writer and includes her musings about the craft.
Here is my favorite passage (I actually woke up today thinking about this quote): “One of the things I know about writing is this: spend it all, shoot it, play it, lose it, all, right away, every time. Do not hoard what seems good for a later place in the book or for another book; give it, give it all, give it now. The impulse to save something good for a better place later is the signal to spend it now. Something more will arise for later, something better.”
Find the book at Amazon.com.