Corpus Hermeticum

The eternal law has no beginning and no ending and it disappears by turns in several parts of the cosmos; in such fashion again and again ⟲ in the chequered course of time, it manifests itself anew, returning to where it vanished before. As such, the nature of circular movement appears-- all points in a circle are linked together, that you can find no place where the movement begins, for it is evident that all points in a line both precede and follow one another forever. And it is in this manner that time revolves. (Asclepius III, trans. Walter Scott 1924, 355)