The first time I saw those words was about three years ago, in Chinese, written in huge font on a billboard along the road just after the Lupu Bridge in Pudong, Shanghai.

• 我第一次看见这几个字大概是三年以前，在上海浦东，下了卢浦大桥后往前开，路边的广告牌上就有这些字，中文的，字体很大。