An Ass and a Cock were in a cattle-pen together. Presently a Lion, who had been starving for days, came along and was just about to fall upon the Ass and make a meal of him when the Cock, rising to his full height and flapping his wings vigorously, uttered a tremendous crow. Now, if there is one thing that frightens a Lion, it is the crowing of a Cock: and this one had no sooner heard the noise than he fled. The Ass was mightily elated at this, and thought that, if the Lion couldn't face a Cock, he would be still less likely to stand up to an Ass: so he ran out and pursued him. But when the two had got well out of sight and hearing of the Cock, the Lion suddenly turned upon the Ass and ate him up.
False confidence often leads to disaster.
有一只驴和一只公鸡一起住在畜栏里。过了一段时间，有一只饿了好几天的狮子来到这里，他要攻击驴，想把驴吃掉，公鸡便飞到最高处，猛烈地拍打翅膀，大声叫唤。而狮子唯一害怕的事情就是公鸡打鸣，他一听到公鸡的叫声便逃走了。驴兴高采烈，精神高涨，觉得狮子既然都不敢面对公鸡，那要对抗驴便更不可能。所以他跑出去追狮子。等他们两个走得远了，他们再也看不见听不见公鸡的时候，狮子便突然转身向驴发动攻击，将他吃掉了。
训诫：盲目的自信通常会导致灾祸。