《吕氏春秋·纪·孟冬纪》
古代的人有葬于广野深山之中而平安至今的，不是说由于有珠玉国宝，而是说葬不可不隐蔽埋藏。
古之人有藏于广野深山而安者矣，非珠玉国宝之谓也，葬不可不藏也。
In ancient times, there are cases of people being buried in open fields or deep in mountains and their graves remain intact until now, which is not because there are pearls and treasures, but because they were adequately hidden.