This time I did not have to question the source of his snarls and hisses, and of the fear which made him sink his claws into my ankle, unconscious of… - H. P. Lovecraft

Personally, I feel more irritated by a challenge to an accepted scientific theory than I do by an act of so-called "evil" or "injustice" among mankind; although I never allow my irritation to hamper my acceptance of the new theory as soon as positive evidence warrants it. Thus I have reluctantly exchanged the old nebular for the planetesimal hypothesis, and am beginning to accept the main points of relativity despite a profound intellectual distaste. What is, is—and our emotions regarding the cosmos and its phenomena are of no significance whatever, being wholly subjective matters dependent on individual accidents of neural and glandular physiology and of experience and environment.

All my stories, unconnected as they may be, are based on the fundamental lore or legend that this world was inhabited at one time by another race who, in practising black magic, lost their foothold and were expelled, yet live on outside ever ready to take possession of this earth again.

What do we know,” he had said, “of the world and the universe about us? Our means of receiving impressions are absurdly few, and our notions of surrounding objects infinitely narrow. We see things only as we are constructed to see them, and can gain no idea of their absolute nature. With five feeble senses we pretend to comprehend the boundlessly complex cosmos, yet other beings with a wider, stronger, or different range of senses might not only see very differently the things we see, but might see and study whole worlds of matter, energy, and life which lie close at hand yet can never be detected with the senses we have. I have always believed that such strange, inaccessible worlds exist at our very elbows, and now I believe I have found a way to break down the barriers.