《汉书·传·武五子传》
《易经》上说： 天帝所帮助的是顺天之意的人，人民所帮助的是讲信义的人；君子履行信义，思想和顺，自有天帝降福于他，一切大吉，没有不利之事。 
《易》曰： 天子所助者顺也，人之所助者信也；君子履信思顺，自天祐之，吉无不利也。 
The I Ching says: The emperor helps those who obey the will of heaven, and the people help those who uphold faith. A gentleman fulfills his faith, thinks and acts in harmony, and Heaven will bless him with happiness and good fortune.