《晋书·志·第一章》
按它的说法，天就像贺形的伞盖和斗笠，地就像一个扣着的大盘子，天和地都是中间高而四周低。
其言天似盖笠，地法覆槃，天地各中高外下。
According to his claim, the sky is like a cone-shaped umbrella and a bucket, the earth is like a big plate with a buckle, and the sky and the earth are both high in the middle and low around it.