《汉书·志·五行志上》
商朝人观察到他们所发生的灾祸或败亡的端倪或征兆都先从大火星的变化上表现出来。因此这样他们知道有天道。 
商人阅其祸败之衅必始于火，是以知有天道。 
The people of Shang observed that the signs or omens of disasters or defeat they experienced always manifested first as changes in the Big Fire Star. Therefore, they knew that there was a way of heaven.