《资治通鉴·唐纪·唐纪二十四》
况且那些出卖鱼鳖的人所关心的只是利，只要钱天天到手，捕鱼的网就会一年比一年增多。陛下一时赎买鱼鳖放生，他们就会百倍地努力捕捞鱼鳖。
且鬻生之徒，唯利斯视，钱刀日至，网罟年滋，施之一朝，营之百倍。
Besides, those who sell fish and turtles only care about profit. As long as they can earn money every day, the number of fishing nets will increase every year. If Your Majesty redeems and releases fish and turtles one time, they will catch fish and turtles a hundred times harder.