《吕氏春秋·纪·仲冬纪》
仲冬实行应在夏天实行的政令，那幺，国家就会出现干旱，雾气就会弥漫，雷声就会震动。如果实行应在秋天实行的政令，那么，雨雪就会时时相杂而落，瓜果就不能成熟，国家就有大兵侵扰；如果实行应在春天实行的政令，耶么，虫螟就会成灾，水泉就会衰减枯竭，百姓中就会流行疫病。
仲冬行夏令，则其国乃旱，氛雾冥冥，雷乃发声；行秋令，则天时雨汁，瓜瓠不成，国有大兵；行春令，则虫螟为败，水泉减竭，民多疾疠。
If one carries out in midwinter the government of summer, then drought will occur in the land and mists will billow. Thunder will rumble. If one carries out in midwinter the government of autumn, then rain and snow will fall without ceasing. Melons and fruits will not ripen. There will be invasions by large armies. If one carries out in midwinter the government of spring, then there will be a plague of insects and worms. Springs and wells will dry up and fail. And among the people there will be epidemics.