Note 9 — PREFACE
A. O. (Arthur Octavius) Prickard translation
Dr. Mahaffy has acutely pointed out that the tract De Tranquillitate animi must have been written before the accession of Titus in A. D. 79, because it contains a remark (467 E) that no Roman Emperor had yet been succeeded by his son. It is this sort of evidence of a date which we seek, but do not find, in the Symposiacs.