I can look back... at two distinct periods of opinion whose foundations I have successively come to distrust—a period before 1919 or so, when the weight of classic authority unduly influenced me, and another period from 1919 to about 1925, when I placed too high a value on the elements of revolt, florid colour, and emotional extravagance or intensity.
Letter to August Derleth (1929), quoted in "H.P. Lovecraft, a Life" by S.T. Joshi, p. 307