《汉书·志·五行志下之上》
天子不思考利于下，便无恩泽，风不摇木，天旱无云，就会损伤禾苗。
辟不思道利，兹谓无泽，厥风不摇木，旱无云，伤禾。
If the Son of Heaven does not consider what benefits the people below, then there will be no graciousness, the wind does not shake the trees, there is drought with no clouds, and the crops will be damaged.