We must do what we must to do

Well, we all do what we can, and it has to be good enough... and if it isn't good enough, it has to do.

We do what we can do means what exactly means, that we do what we can do.

It is not enough that we do our best; sometimes we must do what is required.

It's not enough that we do our best; sometimes we have to do what's required.

We do what we have to so we can do what we want to.

We cannot always do what is best, but we can do what is practical at the time.

We can but try.

All we need to do is to ensure that we do all we have to do and think outside the box.

You have to try, you have to do everything you can.

We do what we must, and call it by the best names we can.

We’re neither pure, nor wise, nor good; we do the best we know.

We might be able to do something. If we were very lucky, it might even be the right thing.

I did my best, and let me urge you to do your best, too. Isn't it the least we can do for one another?