When Tian Zifang saw an old horse standing on the side of the road, he couldn't help sighing his thoughts. He asked the coachman, "What kind of horse is this?" The coachman replied, "This is an old family horse. Because the old man is no longer used, he wants to sell it. " Tian Zifang said: "When I was young, I coveted to use its power. When I was old, I abandoned it. People who are benevolent can't do this. " With that, he redeemed the horse with five silks.
When the veteran heard of Wu, he knew that he had returned.
Main sentence: greedy for power when young, abandon oneself when old, and be kind to others.