不要做那些不确定的事情Don't do things that are not sure

狐狸问蟾蜍，你为什么只吃蠕虫而不是吃鸡？ 蟾蜍说：可以掌握的小东西比不确定的大东西要好。

The fox asked Toad, why do you only eat worms instead of catching chickens? Toad said: The little things that can be mastered are better than the big things that are not sure.