Note 9 — Chapter I · The Development of Astronomical Thought to 1400 A.D. A Preliminary Sketch of Early Theories as a Background.
Reading edition
Diogenes Laërtius: De Vitis, Lib. VIII, c. 1, et 8 (205, 225).
Reading edition
Diogenes Laërtius: De Vitis, Lib. VIII, c. 1, et 8 (205, 225).