When things just get bad you can't quit, you just have to keep fighting.
It ain't over till it's over.
In the household in which I was raised, the themes were pretty simple. 'Work hard. Don't quit. Be appreciative, be thankful, be grateful, be respectful. Also, never whine, never complain. And always, for crying out loud, keep a sense of humor.'
It matters if you don't just give up.
Just know on the inside that you won't quit. That's it. There is nothing else. Shakespeare said, 'To thine own self be true'. I don't know what the @*$% he meant by that, but just don't quit on yourself. It's worth it. The juice is worth the squeeze. I assure you.
Buck up or stay in the truck.
