Everyone knows that it exists, and no one knows what it is. Or again: everyone knows what it is, but no one knows how to say it. Although empirical practitioners, professional seducers and polygamists walk along these paths as if on the sidewalk near their own home. Knowing all the turns by heart. Amazing things have happened forever because of her. The stronger the love, the more wood is broken. There are always some obstacles, always some kind of suffering, and the more tragic the suffering, the more beautiful and heartfelt songs the poets compose. “Jealousy is cruel as hell,” Solomon complained, and after a while Othello strangled Desdemona, Jose stabbed Carmen , and the Russian Criminal Code recognized jealousy as a mitigating circumstance.