Great article on the true value of devoting your life to being a writer by R J Ellroy, author of A Quiet Belief in Angels:
Here's a quote from Kaari Itrio which I like:
I can’t help but to write, I have a inner need for it. If I’m not in the middle of some literary project, I’m utterly lost, unhappy and distressed. As soon as I get started, I calm down.
Then there's Jack Dann:
For me, writing is exploration; and most of the time, I'm surprised where the journey takes me.
And finally from Jules Renard:
Writing is the best way to talk without being interrupted.