“In theory I am an agnostic, but pending the appearance of rational evidence, I must be classed, practically and provisionally, as an atheist.”

Truth is of no practical value to mankind save as it affects terrestrial phenomena, hence the discoveries of science should be concealed or glossed over wherever they conflict with orthodoxy.

Throw a stick, and the servile dog wheezes and pants and shambles to bring it to you. Do the same before a cat, and he will eye you with coolly polite and somewhat bored amusement.

One cannot be too careful in the selection of adjectives for descriptions. Words or compounds which describe precisely, and which convey exactly the right suggestions to the mind of the reader, are essential.

The cat is classic whilst the dog is Gothic – nowhere in the animal world can we discover such really Hellenic perfection of form, with anatomy adapted to function, as in the felidae.

We shall see that at which dogs howl in the dark, and that at which cats prick up their ears after midnight.

Atmosphere, not action, is the great desideratum of weird fiction. Indeed, all that a wonder story can ever be is a vivid picture of a certain type of human mood.

But more wonderful than the lore of old men and the lore of books is the secret lore of ocean.

The oldest and strongest emotion of mankind is fear, and the oldest and strongest kind of fear is fear of the unknown.

No formal course in fiction-writing can equal a close and observant perusal of the stories of Edgar Allan Poe or Ambrose Bierce.

In writing a weird story, I always try very carefully to achieve the right mood and atmosphere and place the emphasis where it belongs.

Of our relation to all creation we can never know anything whatsoever. All is immensity and chaos. But, since all this knowledge of our limitations cannot possibly be of any value to us, it is better to ignore it in our daily conduct of life.

My nervous system is a shattered wreck, and I am absolutely bored and listless save when I come upon something which peculiarly interests me.

Imagination is a very potent thing, and in the uneducated often usurps the place of genuine experience.

Write out the story – rapidly, fluently, and not too critically – following the second or narrative-order synopsis. Change incidents and plot whenever the developing process seems to suggest such change, never being bound by any previous design.

I couldn’t live a week without a private library – indeed, I’d part with all my furniture and squat and sleep on the floor before I’d let go of the 1500 or so books I possess.

All of my tales are based on the fundamental premise that common human laws and emotions have no validity or significance in the cosmos-at-large.

Scientists turn reckless and mutter like gamblers who cannot stop betting. Scientists are buffoons, not because they are rational but because the cosmos is irrational.

When a planner speaks of implementing goals rationally.

Philosophy had supplied Socrates with convictions in which he had been able to have rational, as opposed to hysterical, confidence when faced with disapproval.

Man has a tendency to try to give clear reasons to be rational, but often you can see how all those reasons are not convincing and turn out to be a big nonsense.

If you’re rational and logical, they argue their case rationally and logically. If you’re loyal and faithful, they turn those against you.

For me, a totalitarian parody of a would-be rational learning process.

It demanded a new rationale for belief.

The human race will then become one family, and the world will be the dwelling of Rational Men.