As a horse when he has run, a dog when he has caught the game, a bee when it has made the honey, so a man when he has done a good act does not call out for others to come and see, but he goes on to another act, as a vine goes on to produce again the grapes in season. Must a man then be one of these, who in a manner acts thus without observing it? Yes. What more dost thou want when thou hast done a man a service? Art thou not content that thou hast done something conformable to thy nature, and dost thou seek to be paid for it, just as if the eye demanded a recompense for seeing, or the feet should demand a recompense for walking?