《梁书·列传·卷五十一》
陶弘景着有《帝代年历》，又曾经制造浑天象，陶弘景说，浑天象 不祇是史官使用，也是毕道所必需的东西 。
著《帝代年历》，又尝造浑天象，云 修道所须，非止史官是用 。
Tao Hongjing wrote "Emperor's Calendar", and once made an armillary sphere. Tao Hongjing said that the armillary sphere was not only used by historians, but also by Taoism.