The original words of this sentence are that we are all in the sewer, but some of us are looking at the stars. It's Oscar Wilde's famous saying!

There are three contexts:

Although we were born in poverty, some of us are eager to get ahead!

We all live in the secular world of mortals, but there are always people who can look up at the cool starry sky like water.

We are all in trouble, but some of us are still optimistic.

Simply put, everyone's situation is the same, but the prospects are different.