《礼记·檀弓下》
从前卫国发生内乱，夫子拚死保卫我，这不正合着《溢法》上的 贞，字吗？夫子主持卫国国政，根据礼数的规定，当尊者尊，当卑者卑，以之与四邻交往，使卫国的声望没有受到沾辱，这不是正合着《溢法》上的 文 字吗？
夫子听卫国之政，修其班制，以与四邻交，卫国之社稷不辱，不亦文乎？
Previously, there was an internal rebellion in Wei, the Master fought desperately to protect me, doesn't this coincides with Yi Fa's character 'Zhen'? The Master presided over Wei national politics, and based on the codes of etiquette, respected the respected and humbed the humble, he interacted with the neighboring countries, and the reputation of Wei wasn't tarnished, doesn't this coincides with Yi Fa's character 'Wen'?