Emperor Taizong of Tang Quote
With a bronze mirror, one can see whether he is properly attired; with history as a mirror, one can understand the rise and fall of a nation; with men as a mirror, one can see whether he is right or wrong. Now I've lost my faithful mirror by the death of Weizheng.
Quoted in: Yanqing Vanessa Ong et al. Memories unfolded: a guide to memories at Old Ford Factory, 2008, p. 50