He cried in a whisper at some image, at some vision—he cried out twice, a cry that was no more than a breath—"The horror! The horror!"

...I've seen the devil of violence, and the devil of greed, and the devil of hot desire; but, by all the stars! these were strong, lusty, red-eyed devils, that swayed and drove men -- men I tell you.

Heart of Darkness by Joseph Conrad