Chinese: 用铜做镜子，可以整理好一个人的穿戴；用别人作自己的镜子，可以知道自己每一天的得失；用历史作为镜子，可以知道历史上的兴盛衰亡。
English: With bronze as a mirror one can dress neatly; with the example of another person one can see the advantages and disadvantages of himself; from the mirror of history one can know the reason for the rise and fall of states.