卖剑买牛卖刀买犊；卖刀买牛mài jiàn mǎi niúsell one's swords to buy oxen—❶change one's trade and take up farming;
❷ abandon evil and do good
❍ 帷有躬耕差可为，～悔不早。(陆游《贫甚作短歌排闷》诗)Only farm work is well worth doing; |I regret not having sold my swords and bought oxen earlier. 卖剑买牛剑（刀）；牛（犊）mài jiàn mǎi niú卖掉刀剑，购买耕牛。指改行从事农耕。reformation of brigands, abandon evil and do good |