But to continue, Zeno the philosopher also has written on both the Iliad and the Odyssey, and, in fact, on the Margites too; he believes that this poem also was composed by Homer at the time when he was rather young and was testing his poetic genius. However, Zeno finds fault with none of the work of Homer, undertaking to interpret it and at the same time to show that the poet has written some things in accord with fancy and some things in accord with reality, Zeno's purpose being to save Homer from appearing to be at war with himself in certain matters which are held to be inconsistent with each other as narrated by Homer. But Antisthenes anticipated Zeno in this theory, namely, that some things have been spoken by the poet in accord with fancy and some in accord with reality; however, Antisthenes did not elaborate the theory, whereas Zeno made it plain in each of its details. Moreover, Persaeus, the pupil of Zeno, also has followed the same plan in his writings, as have several others as well.
Source: Dio Chrysostom Volume I-V. Loeb Classical Library. Discourses. Translated by J. W. Cohoon and H. Lamar Crosby. 1940.