Galen illustrates for us the evils of ancient slavery in an incident which he relates to show the inadvisability of giving way to one’s passions, especially anger.[590] Returning from Rome, Galen fell in with a traveler from Gortyna in Crete. When they reached Corinth, the Cretan sent his baggage and slaves from Cenchrea[591] to Athens by boat, but himself with a hired vehicle and two slaves went by land with Galen through Megara, Eleusis, and Thriasa. On the way the Cretan became so angry at the two slaves that he hit them with his sheathed sword so hard that the sheath broke and they were badly wounded. Fearing that they would die, he then made off to escape the consequences of his act, leaving Galen to look after the wounded. But later he rejoined Galen in penitent mood and insisted that Galen administer a beating to him for his cruelty. Galen adds that he himself, like his father, had never struck a slave with his own hand and had reproved friends who had broken their slaves’ teeth with blows of their fists. Others go farther and kick their slaves or gouge their eyes out. The emperor Hadrian in a moment of anger is said to have blinded a slave with a stylus which he had in his hand. He, too, was sorry afterwards and offered the slave money, but the latter refused it, telling the emperor that nothing could compensate him for the loss of an eye. In another passage Galen discusses how many slaves and “clothes” one really needs.[592] [Sidenote: Social life: food and wine.] Galen also depicts the easy-going, sociable, and pleasure-loving society of his time. Not only physicians but men generally begin the day with salutations and calls, then separate again, some to the market-place and law courts, others to watch the dancers or charioteers.[593] Others play at dice or pursue love affairs, or pass the hours at the baths or in eating and drinking or some other bodily pleasure. In the evening they all come together again at symposia which bear no resemblance to the intellectual feasts of Socrates and Plato but are mere drinking bouts. Galen had no objection, however, to the use of wine in moderation and mentions the varieties from different parts of the Mediterranean world which were especially noted for their medicinal properties.[594] He believed that drinking wine discreetly relieved the mind from all worry and melancholy and refreshed it. “For we use it every day.”[595] He affirmed that taken in moderation wine aided digestion and the blood.[596] He classed wine with such boons to humanity as medicines, “a sober and decent mode of life,” and “the study of literature and liberal disciplines.”[597] Galen’s treatise in three books on food values (_De alimentorum facultatibus_) supplies information concerning the ancient table and dietary science. [Sidenote: Allusions to Judaism and Christianity.]