One can't write a weird story of real power without perfect psychological detachment from the human scene, and a magic prism of imagination which suffuses them and style alike with that grotesquerie and disquieting distortion characteristic of morbid vision. Only a cynic can create horror—for behind every masterpiece of the sort must reside a driving daemonic force that despises the human race and its illusions, and longs to pull them to pieces and mock them.

Letter to Weird Tales editor Edwin Baird printed in Weird Tales 3, no. 3 (March 1924), pp. 89-92. Quoted in Lord of a Visible World: An Autobiography in Letters edited by S. T. Joshi, p. 122