a wolf ing out of a field of oats met a horse and thus addressed him:"i would advise you to go into that field. it is full of fine oats, which i have left untouched for you, as you are a friend whom i would love to hear enjoying good eating." the horse replied, "if oats had been the food of wolves, you would never have indulged your ears at the cost of your belly."

men of evil reputation, when they perform a good deed, fail to get credit for it.

一只狼在田间四处闲逛，看到了一些燕麦。【百家文学】由于他是食肉动物，不宜吃燕麦，就转身离开了。不久，他遇到了一匹马，就把马带到那块田里，说:“我在这里看到了燕麦，我自己舍不得吃，专门留给你的，因为你咀嚼食物的声音非常动听。”马回答说:“啊哈！朋友，如果狼可以食用燕麦的话，你就不会把耳朵派上用场而让肚子无所作为了。”

臭名昭著的人即使做好事，也得不到别人的认同。