V. These habits some ascribed to narrowness of mind, while others thought that he carried parsimony and avarice to excess in himself in order by his example to reform and restrain others. Be this as it may, I for my own part consider that his conduct in treating his slaves like beasts of burden, and selling them when old and worn out, is the mark of an excessively harsh disposition, which disregards the claims of our common human nature, and merely considers the question of profit and loss. Kindness, indeed, is of wider application than mere justice; for we naturally treat men alone according to justice and the laws, while kindness and gratitude, as though from a plenteous spring, often extend even to irrational animals. It is right for a good man to feed horses which have been worn out in his service, and not merely to train dogs when they are young, but to take care of them when they are old. When the Athenian people built the Parthenon, they set free the mules which had done the hardest work in drawing the stones up to the acropolis, and let them graze where they pleased unmolested. It is said that one of them came of its own accord to where the works were going on, and used to walk up to the acropolis with the beasts who were drawing up their loads, as if to encourage them and show them the way. This mule was, by a decree of the people of Athens, maintained at the public expense for the rest of its life. The racehorses of Kimon also, who won an Olympic victory, are buried close to the monument of their master. Many persons, too, have made friends and companions of dogs, as did Xanthippus in old times, whose dog swam all the way to Salamis beside his master's ship when the Athenians left their city, and which he buried on the promontory which to this day is called the Dog's Tomb.[27] We ought not to treat living things as we do our clothes and our shoes, and throw them away after we have worn them out; but we ought to accustom ourselves to show kindness in these cases, if only in order to teach ourselves our duty towards one another. For my own part I would not even sell an ox that had laboured for me because he was old, much less would I turn an old man out of his accustomed haunts and mode of life, which is as great an affliction to him as sending him into a foreign land, merely that I might gain a few miserable coins by selling one who must be as useless to his buyer as he was to his seller. Cato, however, as if taking a perverse pleasure in flaunting his meannesses, relates that he left behind him in Spain the horse which he rode when consul there, in order to save the state the cost of carrying him over to Italy. Whether those acts of his are to be ascribed to magnanimity or narrow-mindedness the reader must decide for himself.