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 … - Friedrich Nietzsche

Whoever fights monsters should see to it that in the process he does not become a monster.

He wants to be known deep down, abysmally deep down, before he is capable of being loved at all; he dares to let himself be fathomed. He feels that his beloved is fully in his possession only when she no longer deceives herself about him, when she loves him just as much for his devilry and hidden insatiability as for his graciousness, patience, and spirituality.

But like infection is the petty thought: it creeps and hides, and wants to be nowhere — until the whole body is decayed and withered by the petty infection... Thus spoke Zarathustra.

Those who hear not the music think the dancers mad.