"Looking back through the last page or two, I see that I have made it appear as though my motives in writing were wholly public-spirited. I don't want to leave that as the final impression. All writers are vain, selfish, and lazy, and at the very bottom of their motives there lies a mystery. Writing a book is a horrible, exhausting struggle, like a long bout of some painful illness. One would never undertake such a thing if one were not driven on by some demon whom one can neither resist nor understand. For all one knows that demon is simply the same instinct that makes a baby squall for attention. And yet it is also true that one can write nothing readable unless one constantly struggles to efface one's own personality. Good prose is like a windowpane. "
http://orwell.ru/library/essays/wiw/english/e_wiw
