“与怪物战斗的人，应当小心不要因此变成怪物。当你长久凝视深渊时，深渊也在凝视你。”

所收录版本的文本 · 英语

“He who fights with monsters should be careful lest he thereby become a monster. And if thou gaze long into an abyss, the abyss will also gaze into thee.”