[342] Cf. Justin, _Apol._ I, 5, 13, 61, 65, 67; _Dial._ 7, 29, 116; Tatian, _Orat._ 13; Athen., _Legat._ 10. [343] Justin, _Apol._ I, 5, 15, 21, 56; II, 5-7; Tatian, _Orat._ 7 f., 11; Athen., _Legat._ 24 ff. [344] Justin, _Apol._ I, 15 ff., and often in the apologetic writings. [345] Cf. _Apol._ I, 23, 63; II, 6. [346] Cf. p. 274. [347] _Gal._ I, 11-12; _Eph._ III, 3-4. [348] _History of Dogma_, I, 222 ff. [349] Irenaeus, _Adv. Haer._ I, 24, 3-4. [350] Irenaeus, _Adv. Haer._ I, 1-3. [351] Cf. Ptolemaeus, apud Epiphan., _Haer._ XXXIII, 3-7, _Epist. ad Floram_, at the beginning. [352] Irenaeus, _Adv. Haer._ I, 5-8. The Valentinian idea of the triple nature of man is as old as Plato. [353] Irenaeus, _Adv. Haer._ I, 24, 2-4. [354] Ibid., I, 2, 5-6. [355] Cf. Irenaeus, _Adv. Haer._ I, 23, 4; 24, 5. [356] Τῶν κατὰ τὴν ἀληθῆ φιλοσοφἰαν γνωστικῶν ὑπομνημἀτων στρωματεῖς. [357] Cf. also _Strom._ II, 19-20. [358] _Strom._ I, 5, 28, 3; cf. I, 20, 97; VI, 7, 59. [359] Cf. _De prin._ Praef. 1. [360] Tradition says that Origen heard the discourses of Ammonius Saccas, the founder of the Neoplatonic School. Porphyr. apud Euseb. _H. E._ VI, 19, 6. [361] _De prin._ I, 1; III, 5. [362] _De prin._ I, 1 and 2 deal with God and Christ respectively in a systematic way; cf. also II, 5 and 6. Besides there are many passages in Origen’s extant works, too numerous for reference here, which show his views. [363] _De prin._ II, 6. [364] _De prin._ I, 3; II, 7. [365] Origen adopted the popular belief in the existence of angels and demons and made great use of it in explaining the present state of the world. The passages in his works are too numerous to be all named here; but _De prin._ I, 8, entire is devoted to the topic. [366] _C. Cels._ IV, 65; _De prin._ I, 5. [367] _De prin._ III, 6; cf. I, 5, 3. [368] Clement, _Paed._ III, 1, 1. _Strom._ V, 14, 94; VI, 16, 134 f. Cf. Plato, _Rep._ IV, 436 A-441 C; _Tim._ 42 A. [369] _De prin._ III, 4; cf. II, 8. [370] _De prin._ III, 1; _In Matt._, ser. 69; _in Rom._ IV, 5; IX, 3. [371] _C. Cels._ VII, 17; cf. I, 31; _Exhort. ad Mart._ entire. [372] _C. Cel._ III, 59-62; VII, 46. Cf. _in Joh._ I, 20-22; _C. Cel._ II, 66-69; IV, 15-18; VI, 68. [373] Apud Euseb. _H. E._ VI, 19, 7 f. [374] Cf. pp. 119 ff. [375] Schol. Venet. ad _Il._ XX, 67. [376] _De prin._ IV, 11ff. [377] The Essenes seem to have been a Jewish sect strongly under the influence of Orphic and Pythagorean ideas. Neither they nor the Therapeutae influenced Judaism or Christianity to any considerable extent. [378] _1 Cor._ VII entire; _Col._ II, 20-23; _1 Tim._ IV, 1-3. [379] _Didache_ 7.