Haruki Murakami said this quote
“ In the novelist's profession, as far as I'm concerned, there's no such thing as winning or losing. Maybe numbers of copies sold, awards won, and critics' praise serve as outward standards for accomplishment in literature, but none of them really matter. What's crucial is whether your writing attains the standards you've set for yourself. Failure to reach that bar is not something you can easily explain away. When it comes to other people, you can always come up with a reasonable explanation, but you can't fool yourself. In this sense, writing novels and running full marathons are very much alike. ”