《逸周书·卷六·月令解》
作各种事精不要违背自然规律，一定要顺应天时，按照事情的类别，什么时侯该作什么就作什么。实行这个月的政令，白露降落，每旬一次。
凡举事，无逆天数，必顺其时，乃因其类，行之是令。白露降三旬。
Do not violate the laws of nature in doing things, and be sure to follow the right time, and do what should be done at what time according to the category of things. Implement this month's political decree, and the white dew will fall, once every ten days.