Note 7 — Chapter I · THEORIES OF LANGUAGE.

He introduced the practice of writing r between two vowels instead of s, and banished the use of z “because its pronunciation resembles the sound that passes through the teeth of a dying man” (Pomp. Dig. i. 2, 2, 36, Mart. Cap. i. 3, § 261, ed. Kopp). Panætius had read his poetical “Maxims,” or “Sententiæ,” which Cicero calls “Pythagorean” (Tusc. iv. 2, 4).