冬箑夏裘

Explanation: Phrase from the "Spirit of training Huainanzi": "Knowing the Sha winter, summer of fur, no for himself, then all things turn to dust and carry on." Later, because of "summer and winter Sha Qiu" as a metaphor out of date. 　　Source: Phrase from the "spirit training Huainanzi" knowledge of the Sha winter, summer of fur, no for himself, then all things turn to dust and carry on. "