What are the similarities between redeeming an old horse and killing an ass?

The similarity between redemption of old horses and killing donkeys is that they both emphasize kindness and care for the elderly and animals, which embodies the importance of protecting vulnerable groups and caring for life in China traditional culture. According to the relevant public information, the story of redeeming an old horse comes from the story in "Happy Travel in Zhuangzi", which tells that a man bought an old horse out of pity and set it back to nature, expressing people's respect and kindness to the old man. The story of killing donkeys comes from the story in Lv Chunqiu Nature, which tells that a man killed his donkey in order to save money and failed.