Example is more powerful than precept.
狮子和海豚
The Lion and the Dolphin
狮子在海边漫步，看到了在海里遨游的海豚，便提议结成联盟。狮子说：“咱们两个，一个是百兽之王，一个是海洋动物霸主，没有谁比你与我结成好朋友更合适的。”海豚欣然同意。不久之后的一天，狮子和野牛发生了争斗，难解难分。狮子大声呼喊，请求海豚出手相助。海豚虽然极力想钻出海面去帮忙，可是始终未能成功。孤军奋战的狮子埋怨海豚背信弃义。海豚对狮子说：“亲爱的朋友，我真的是爱莫能助啊！你责骂的对象不应是我，而是这大自然，都怪它让我成为海洋动物，无法到陆地上生存啊！”
心有余而力不足。
A Lion roaming by the seashore saw a Dolphin lift up its head out of the waves，and suggested that they contract an alliance，saying that of all the animals they ought to be the best friends，since the one was the king of beasts on the earth，and the other was the sovereign ruler of all the inhabitants of the ocean. The Dolphin gladly consented to this request.