《淮南子·俶真训》
人们过度劳碌心志而扰乱自己的精神，费尽心思去追求物质利益，这些都会耗损人的精神元气而使精神离开了人的身心。
夫人之事其神而娆其精，营慧然而有求于外，此皆失其神明而离其宅也。
When people overwork their minds and disturb their spirits, they exhaust their spiritual vitality and cause their spirits to leave their bodies and minds.