Menecrates the physician, who was addressed by the title of ' Zeus,' wrote in a letter to him : ‘Menecrates Zeus to King Agesilaus, health and happiness.’ Agesilaus wrote in reply : ‘King Agesilaus to Menecrates, health and sanity!’ 1 [p. 131]
1 The story is repeated in Moralia, 213 A, and in Plutarch's Life of Agesilaus, chap. xxi. (607 E). Aelian, Varia Historia, xii. 51, and Athenaeus, 289 B, say that it was Philip of Macedon who thus replied to Menecrates.