Favorite Inspiring Quotations on Writing

I've been writing a novel in which one of the characters posts a quotation every week, and since she wants to be a writer, a lot are about writing. I have collected some inspiring quotations about writing, partly by following a thread on She Writes site. Here are a few of my favorites:

"Writing is the only thing that, when I do it, I don't feel I should be doing something else." by Gloria Steinem

"We write to taste life twice, in the moment and in retrospect." by Anaïs Nin

"I write entirely to find out what I'm thinking, what I'm looking at, what I see and what it means. What I want and what I fear." Joan Didion

"In my view, a writer is a writer because even when there is no hope, even when nothing you do shows any sign of promise, you keep writing anyway." Junot Diaz

"When I dare to be powerful - to use my strength in the service of my vision, then it becomes less and less important whether I am afraid." Audre Lorde

Do you have a favorite writer you'd like to quote on writing? Please post in the comments!