Stephen King has written so many successful horror stories, his voice basically represents the nightmares and monsters lurking in the shadows for multiple generations. (Just check out his Wikipedia page, after all.)
Mr. King has written nearly 200 short stories over his career. He writes like a man who's been to the inferno and back. He knows how to perfectly creep us out. Just check out some of his creepiest quotes.
"Alone. Yes, that's the key word, the most awful word in the English tongue. Murder doesn't hold a candle to it and hell is only a poor synonym." — from Salem's Lot
"We make up horrors to help us cope with the real ones." — King on horror
"It's when the lights go out and you feel something behind you, you hear it, you feel its breath against your ear, but when you turn around, there's nothing there..." — King on the worst kind of terror
"Monsters are real, and ghosts are real too. They live inside us, and sometimes, they win." — King on real monsters
"Only enemies speak the truth; friends and lovers lie endlessly, caught in the web of duty." — from The Dark Tower
"A stupid man is more prone to cabin fever just as he's more prone to shoot someone over a card game or commit a spur-of-the-moment robbery. He gets bored." — from The Shining
"Man may have been made in the image of God, but human society was made in the image of His opposite number, and is always trying to get back home." — from The Stand
"Death is a mystery, and burial is a secret." — King on burial
"In the stutter-flashes of light, the clouds look like huge transparent brains filled with bad thoughts." — from It
"The devil's voice is sweet to hear." — from Needful Things
"Do you know how cruel your God can be, David. How fantastically cruel? ...Sometimes he makes us live" — from Desperation
"The world has teeth and it can bite you with them any time it wants." — from The Girl Who Loved Tom Gordon
"Perhaps you saw what place our universe plays in the scheme of things — as no more than an atom in a blade of grass." — from The Gungslinger
If you're new to the works of Stephen King, check out his Wikipedia entry; it's exhilarating going through his vast database of books, stories, and quotes. You'll discover that some of the best movies in recent history were based on his books.
The list of his awards is almost as long as the entry for World War II at this point.