“Always look on the bright side of the abyss”

“When you look into an abyss, the abyss also looks into you.”

“He who fights with monsters should look to it that he himself does not become a monster . . . when you gaze long into the abyss the abyss also gazes into you”

“And if you gaze for long into an abyss, the abyss gazes also into you.”

“If you gaze long into an abyss, the abyss will gaze back into you?”

“When you stare into the abyss the abyss stares back at you.”

“In the end things must be as they are and have always been--the great things remain for the great, the abysses for the profound, the delicacies and thrills for the refined, and, to sum up shortly, everything rare for the rare.”