《资治通鉴·汉纪·汉纪二十二》
即使专门研究和熟悉法律的官吏，都弄不清头绪，想让天下百姓都知晓，不是太难了吗！
自明习者不知所由，欲以晓喻众庶，不亦难乎！
Even officials who study law specifically, and who are therefore familiar with it, cannot get the drift of it. How much more difficult it must be for the common people of the world to understand everything!