First, there must be talent, much talent. Talent such as Kipling had. Then there must be discipline. The discipline of Flaubert. Then there must be the conception of what it can be and an absolute conscience as unchanging as the standard meter in Paris, to prevent faking. Then the writer must be intelligent and disinterested and above all he must survive. Try to get all these things in one person and have him come through all the influences that press on a writer. The hardest thing, because time is so short, is for him to survive and get his work done.