《易传·彖传下·革》
变革得当，其 后悔 之事自然 消亡 ，天地之气变化而四时形成，商汤、武王改姓受天命，上顺天时，下应人心。
革而当，其悔乃亡。天地革，而四时成。汤武革命，顺乎天而应乎人。
The change is appropriate, the regretful things naturally disappear, the energy of heaven and earth changes, and the four seasons are formed. King Shang Tang and King Wu changed their surnames and received the destiny, obeying the destiny in the sky and responding to the hearts of the people below.