Note 33 — Chapter VI · THE STUDY OF NATURE. FUNDAMENTAL POSITIONS.
Oswald J. (Oswald Joseph) Reichel translation
They denied it, according to Orig. c. Cels. iv. 56. Cic. Acad. i. 11, 39, says: Zeno dispensed with a quinta natura, being satisfied with four elements: statuebat enim ignem esse ipsam naturam, quæ quæque gigneret, et mentem atque sensus. ↑