《多缝一个钮扣》 < One extra button >

裁缝师傅在缝衣服的时候，总会在衣服上多缝一个钮扣，以备不时之需。

The taylors always sew an extra button on the cloth so that when you lost any of the buttons, you can use the spare one.

启示：保险的作用其实就相当于这个钮扣，但为什么总是当您需要它的时候，才会想到它呢？

It is the same like an insurance However, why a lot of people would only think about it when you need it?