The selfish man looks out for himself exclusively.

那自私的人只顾照顾他自己。

We are still the America that looks out for one another, bound by our shared belief that I am my brother's keeper, I am my sister's keeper.

我们还是那个美国，我们互相关照，以共同的信念为纽带，我是兄弟姐妹的守护神。