“Now all my tales are based on the fundemental premise that common human laws and interests and emotions have no validity or significance in the vast cosmos-at-large.... To achieve the essence of real externality, whether of time or space or dimension, one must forget that such things as organic life, good and evil, love and hate, and all such local attributes of a negligible and temporary race called mankind, have any existence at all.”

“A serious adult story must be true to something in life. Since marvel tales cannot be true to the events of life, they must shift their emphasis towards something to which they can be true; namely, certain wistful or restless moods of the human spirit, wherein it seeks to weave gossamer ladders of escape from the galling tyranny of time, space, and natural law.”

“A certain atmosphere of breathless and unexplainable dread of outer, unknown forces must be present; and there must be a hint, expressed with a seriousness and portentousness becoming its subject, of that most terrible conception of the human brain - a malign and particular suspension or defeat of those laws of Nature which are our only safeguard against the assaults of chaos and the daemons of unplumbed space .... Therefore we must judge a weird tale not by the author's intent, or by the mere mechanics of the plot; but by the emotional level which it attains at its least mundane point... The one test of the really weird is simply this - whether or not there be excited in the reader a profound sense of dread, and of contact with unknown spheres and powers; a subtle attitude of awed listening, as if for the beating of black wings or the scratching of outside shapes and entities on the known universe's utmost rim.”

“All life is only a set of pictures in the brain, among which there is no difference betwixt those born of real things and those born of inward dreamings, and no cause to value the one above the other.”

“But more wonderful than the lore of old men and the lore of books is the secret lore of ocean. Blue, green, grey, white, or black; smooth, ruffled, or mountainous; that ocean is not silent. All my days have I watched it and listened to it, and I know it well. At first it told to me only the plain little tales of calm beaches and near ports, but with the years it grew more friendly and spoke of other things; of things more strange and more distant in space and in time. Sometimes at twilight the grey vapours of the horizon have parted to grant me glimpses of the ways beyond; and sometimes at night the deep waters of the sea have grown clear and phosphorescent, to grant me glimpses of the ways beneath. And these glimpses have been as often of the ways that were and the ways that might be, as of the ways that are; for ocean is more ancient than the mountains, and freighted with the memories and the dreams of Time.”

“It is good to be a cynic — it is better to be a contented cat — and it is best not to exist at all.”

“I am so beastly tired of mankind and the world that nothing can interest me unless it contains a couple of murders on each page or deals with the horrors unnameable and unaccountable that leer down from the external universes.”