《淮南子·人间训》:“近塞上之人,有善术者,马无故亡而入胡,人皆吊之,其父曰:‘此何遽不为福乎?’居数月,其马将胡骏马而归。”后人所说“塞翁失马,安知非福”即此。比喻虽然暂时受到损失,但也可能因此得到好处,坏事可能变成好事。 “Huainanzi human training”: “Near the stuffed person, there are good people, the horse died without cause into the Hu, everyone hanging, and his father said: ’What is not blessing?’ , The horse will Hu Jun and return. ”“ Descendants say ”blessing, blessing " that is. Although the metaphor is temporarily lost, it may also be benefited, and bad things may turn out to be good.