Note 22 — Chapter II · KNOWLEDGE MAY BE ACQUIRED BY ASTRONOMY TO A CERTAIN EXTENT
J. M. Ashmand translation
There seems reason to suppose that this was a favourite speculation among the ancients. In Scipio’s Dream, as related by Cicero, the phantom of his illustrious grandfather is made to speak of this entire return of all the celestial bodies to some original position which they once held, as being the completion of the revolution of one great universal year: and the phantom adds, “but I must acquaint you that not one-twentieth part of that great year has been yet accomplished.”
This quotation is from memory, and perhaps may not be verbally correct.