折疑論 3.156

3.156

夫日月雖高而蝕（陰陽誌云日者眾陽之宗。月者太陰之精。以高而言。則日月去地四萬餘繕那亦云由旬。一由旬四十里。如此之高。尚有所蝕之患難也）。

Although the sun and moon are high, they suffer eclipses; (The *Record of Yin and Yang* says: 'The sun is the master of all yang; the moon is the essence of extreme yin.' Speaking of height, the sun and moon are more than forty thousand yojanas—also called *yojanas*—from the earth, one yojana being forty li. At such height, they still have the afflictions of eclipses.)