One day, by the river (河) there are two cats. His father Jack and his son Sam are going fishing. Jack goes fishing and sits quietly. But Sam sits for a while. He catches a butterfly (捉蝴蝶) then plays with it. After a while he goes fishing. He sees a dragonfly (蜻蜓) and he catches the dragonfly. His father catches a big fish. He is very happy. But Sam doesn't catch a fish, so he is not happy. His father says, you are not of two minds (做事不能三心二意的).