《淮南子·要略》
《时则》的内容，是说上面安依循自然运行的时序，下面要尽力发挥土地的潜力；据守六度的法则，实行适宜的节令，符合人类生活的规律，形成十二个月的月令，作为共同遵循的准则，一月一年，终而复始，在没有穷尽地运行着，按照自然法则，依样效法。便知道祸福产生的规律，持守和舍弃，开发和禁止，各自都有鬼神的忌日。国君发布政令，按时教化百姓。
《时则》者，所以上因天时，下尽地力，据度行当，合诸人则，形十二节，以为法式，终而复始，转于无极，因循仿依，以知祸福，操舍开塞，各有龙忌，发号施令，以时教期。
The content of "Shi Ze" states that the top should follow the natural order, and the bottom should make full use of the land's potential; abide by the laws of the six seasons, implement appropriate seasonal regulations, conform to the laws of human life, and formulate the monthly orders of the twelve months as common rules, which are repeated from month to month and from year to year without end, and are imitated according to the laws of nature. Then we know the laws of the occurrence of misfortune and blessing, and that both holding on and letting go, developing and prohibiting, have their own taboos. The monarch issues decrees and educates the people on time.