王知夫苗乎?七八月之间旱,则苗槁矣。天油然作云,沛然下雨,则苗浡然兴之矣。其如是,孰能御之?
——《孟子·梁惠王上》 /Ep7GoL1hWhkt1gzVd6PdsAyBdSMqR+m7/K106BB2VsYaYaxFGA4ONWP1ksQIdDC