23. The king of Persia, as Herodotus relates in his first book, drank no water, except what came from the river Choaspes, which flows by Susa. And when he was on a journey, he had numbers of four-wheeled waggons drawn by mules following him, laden with silver vessels containing this water, which was boiled to make it keep. And Ctesias the Cnidian explains also in what manner this water was boiled, and how it was put into the vessels and brought to the king, saying that it was the lightest and sweetest of all waters. And the second king of Egypt, he who was surnamed Philadelphus, having given his daughter Berenice in marriage to Antiochus the king of Syria, took the trouble to send her water from the river Nile, in order that his child might drink of no other river, as Polybius relates. And Heliodorus tells us, that Antiochus Epiphanes, whom Polybius calls Epimanes,[74:1] on account of his actions, mixed the fountain at Antioch with wine; a thing which Theopompus relates to have been also done by the Phrygian Midas, when he wished to make Silenus drunk in order to catch him. And that fountain is, as Bion relates, between the Mædi and the Pæonians, and is called Inna. But Staphylus says, that Melampus was the first who invented the idea of mixing wine with water. And Plistonicus says that water is more digestible than wine. 24. Now men who drink hard before eating, are usually not very comfortable in their digestion, which are apt to get out of order by such a system, and what they eat often turns sour on the stomach. So that a man who has a regard for his health, ought to take regular exercise, for the sake of promoting frequent perspiration; and he ought also to use the bath regularly for the sake of moistening and relaxing his body. And besides this, and before he bathes, he should drink water, as being an excellent thing,--drinking warm water usually in winter and spring, and cold water in summer, in order not to weaken the stomach. But he should only drink in moderation before the bath or the gymnasium, for the sake of diffusing what he drinks throughout his system beforehand, and in order to prevent the unmixed strength of wine from having too much effect on his extremities. And if any one thinks it too much trouble to live on this system, let him take sweet wine, either mixed with water or warmed, especially that which is called πρότροπος, the sweet Lesbian wine, as being very good for the stomach.