无限小在自然中的作用是无限大的。

Every generation imagines itself to be more intelligent than the one that went before it, and wiser than the one that comes after it.

You cannot get through a single day without having an impact on the world around you. What you do makes a difference, and you have to decide what kind of difference you want to make.

解释：对君不义，对兄弟不亲，即使土地扩大了，也会分崩离析。