Cicero quotes Herakleitos 113 in Greek without the author’s name, and translates 114 carefully; Bywater, p. x, suggests that he found the latter in somebody’s _de exilio commentatio_. Returning to the Stoic school, we find in Seneca an accurate translation of Herakleitos 77 and 81, so that we are inclined to trust his version of 120. What seems to be Herakleitos 113, however, is assigned to Demokritos in an expanded form. The epistles attributed to Herakleitos belong to approximately this period, and are interesting only as additional evidence to the study of Herakleitos by Stoic philosophers. Stobaeos quotes several Herakleitean phrases from Musonius. Fr. 20 and 69 are given only in substance, a phrase from 114 is worked into the context, and 75 is quoted in a later form. Fr. 75 as well as 27 and 67 is found in the second and third books of Clement’s _Paedagogos_, books which draw largely from Musonius. The use of Herakleitean material by Lucian, especially in his _Vitarum auctio_, ch. xiv., is doubtless based on a Stoic source, as is indicated by the work ἐκπύρωσις. We may conclude this survey of Stoic writers with Marcus Aurelius. In his writings we find bare allusion to Herakleitos 2, 5, 20, 73, and perhaps to 97; a word or two of 34, 84, and 98 are worked into the text; while 25, 69, 90, 93, 94 are half quoted in the text. Apparently all are allusions to, or abbreviated citations of, sentences with which the reader was supposed to be familiar. It is wholly improbable that citations made in this manner were drawn from the book itself; rather they seem to point to a collection of ‘sayings’ of Herakleitos which must have been quite generally known. Unless such a collection is assumed, they must be regarded as phrases which were familiar to all because they were so often quoted. The former hypothesis seems to me the more tenable.