From the Times obit:
"Writing is a serious and sober activity for me now compared to when I was younger. The question of how good are you is one that really good novelists obsess about more than poor ones. Good novelists are always terribly affected by the fear that they’re not as good as they thought and why are they doing it, what are they up to?
“It’s such an odd notion, particularly in this technological society, of whether your life is justified by being a novelist. And the nice thing about getting older is that I no longer worry about that. I’ve come to the simple recognition that would have saved me much woe 30 or 40 or 50 years ago — that one’s eventual reputation has very little to do with one’s talent. History determines it, not the order of your words.”