《论衡·卷九·问孔篇》
为士的时候坐二匹马的车，可以解下一匹马来作从前旅馆办事人的丧礼，如今也何不卖掉二匹马买椁来以便跟感情相称，而坐一匹马的车解决步行问题呢？
为士时乘二马，截一以赙旧馆，今亦何不截其二以副恩，乘一以解不徒行乎？
When he was an official, he used to ride in a carriage drawn by two horses. He could have given up one horse so as to finance the funeral of a man who had attended to his needs when he once stayed at an inn. Why did he not now sell both horses and buy a coffin from the proceeds, so as to do justice to his sentiment, and use a carriage drawn by one horse to solve his problem of travelling?