《孟子·公孙丑章句下·第十三节》
从历史上来看，每五百年就会有一位圣贤君主兴起，其中必定还有以才德闻名于时的人出现。
五百年必有王者兴，其间必有名世者。
Looking back at history, a sage monarch would emerge every five hundred years, and there were also people who became famous for their talents and virtues.