Note 30 — Chapter VI · THE STUDY OF NATURE. FUNDAMENTAL POSITIONS.
Oswald J. (Oswald Joseph) Reichel translation
In Ach. Tat. Isag. 130, A, he defines οὐρανὸς as αἰθέρος τὸ ἔσχατον, ἐξ οὗ καὶ ἐν ᾧ ἐστὶ πάντα ἐμφανῶς. Similarly Diog. 138; Cleomed. Met. p. 7. Otherwise the term is used in a wider sense. ↑