《论衡·卷十九·宣汉篇》
汉朝兴建二十多年，应验了孔子 必须经过三十年才能实现仁政 的话。
汉兴二十余年，应孔子之言 必世然後仁 也。
Since the founding of the Han Dynasty for more than twenty years, the words of Confucius that it must take thirty years to achieve benevolent governance have been fulfilled.