义、礼、智、信，皆仁也。
仁义、礼仪、智慧、诚信，这些都是仁的表现。
The dead are always looking down on us, they say. But we don't look back.
We must listen to the site; it will tell us what to do.
每个单子都是一个中心，无限地体现了周围的宇宙。