《礼记·曾子问》
如果继续前行，岂不是与夜行一样吗？君子行事依礼，总不能使别人的亲属有遇上灾祸的危险呀。 
且君子行礼，不以人之亲痁患。 
If I were to remain here much longer, would I not be like one who goes abroad at night? A gentleman never allows anything to interfere with the observance of proper rites, nor will he ever allow a relative of his host to be in danger.