Kitap 7
1.38
I have decided to give a general account of all the Stoic doctrines in the life of Zeno because he was the founder of the School. I have already given a list of his numerous writings, in which he has spoken as has no other of the Stoics. And his tenets in general are as follows. In accordance with my usual practice a summary statement must suffice.Laertius adheres to his plan of arranging doctrine under two heads: (1) a general or summary, (2) a particular, treatment; cf. inf. vii. 48 κεφαλαιωδῶς κατὰ μέρος. Here follows a valuable and full doxography, extending to § 160, collected from various sources; §§ 49-83 come from Diocles. The classification is roughly as follows: divisions of Philosophy, §§ 39-41; Logic, §§ 42-83; Ethics, §§ 84-131; Physics, §§ 132-160.
1.39
Philosophic doctrine, say the Stoics, falls into three parts: one physical, another ethical, and the third logical. Zeno of Citium was the first to make this division in his Exposition of Doctrine, and Chrysippus too did so in the first book of his Exposition of Doctrine and the first book of his Physics; and so too Apollodorus and Syllus in the first part of their Introductions to Stoic Doctrine, as also Eudromus in his Elementary Treatise on Ethics, Diogenes the Babylonian, and Posidonius.
1.39
These parts are called by Apollodorus Heads of Commonplace; by Chrysippus and Eudromus specific divisions; by others generic divisions.
