Slowly but inexorably ...

Slowly but inexorably crawling upon my consciousness and rising above every other impression, came a dizzying fear of the unknown; a fear all the greater because I could not analyse it, and seeming to concern a stealthily approaching menace; not death, but some nameless, unheard-of thing inexpressibly more ghastly and abhorrent.
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 H. P. Lovecraft

Quotes from the same author

The poetical tendency of the present and of the preceding century has been divided in a manner singularly curious. One loud and conspicuous faction of bards, giving way to the corrupt influences of a decaying general culture, seems to have abandoned all the properties of versification and reason in its mad scramble after sensational novelty; whilst the other and quieter school constituting a more logical evolution from the poesy of the Georgian period, demands an accuracy of rhyme and metre unknown even to the polished artists of the age of Pope.
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 H. P. Lovecraft
Good art means the ability of any one man to pin down in some permanent and intelligible medium a sort of idea of what he sees in Nature that nobody else sees. In other words, to make the other fellow grasp, through skilled selective care in interpretative reproduction or symbolism, some inkling of what only the artist himself could possibly see in the actual objective scene itself.
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 H. P. Lovecraft
Pessimists are just as illogical as optimists; insomuch as both envisage the aims of mankind as unified, and as having a direct relationship (either of frustration or of fulfilment) to the inevitable flow of terrestrial motivation and events. That is - both schools retain in a vestigial way the primitive concept of a conscious teleology - of a cosmos which gives a damn one way or the other about the especial wants and ultimate welfare of mosquitos, rats, lice, dogs, men, horses, pterodactyls, trees, fungi, dodos, or other forms of biological energy.
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 H. P. Lovecraft
There were nameless horrors abroad; and no matter how little one might be able to get at them, one ought tp stand prepared for any sort of action at any time.
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 H. P. Lovecraft
I'll tell you something of the forbidden horrors she led me into - something of the age-old horrors that even now are festering in out-of-the-way corners with a few monstrous priests to keep them alive. Some people know things about the universe that nobody ought to know, and can do things that nobody ought to be able to do.
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 H. P. Lovecraft