[19] See 3.

[20] Mentioned in Porphyry's Life of Pythagoras, 48, living under Nero.

[21] Living under Tiberius, see Suetonius, Life of Tiberius, 14.

[22] See vi. 5.

[23] See 17.

[24] See 18.

[25] See 17.

[26] See ii. 3. 17.

[27] See 23.

[28] The fragments of all this are probably the Principles of the Theory of the Intelligibles, by Porphyry.