You no way back

Once you've broken the seal of a bottle there's no way you can put it back together again.

一旦你撕开瓶子的封口,就没法将它重新合上。

《柯林斯英汉双解大词典》

No matter how far apart we are, my thought always find their way back to you.

无论我们相距多么遥远，我的思念总在你的身边。

Of course, there's no need to see things in such a quid pro quo way, but you can see how this example illustrates the way that helping others can come back to help you in many different ways.

当然，没必要用这种交换的方式来看问题。但从这个例子中我们可以看到，帮助别人能让你通过不同的方式得到回报。