In marriage people get in fights because they don't communicate, because you don't want to hurt the other person. If you do want to hurt the other person, then shame on you - you're an asshole. My wife and I do not argue. We communicate. We talk. But we've never fought in our entire relationship.
I'm not talking about blind optimism, the kind of hope that just ignores the enormity of the tasks ahead or the road blocks that stand in our path. I'm not talking about the wishful idealism that allows us to just sit on the sidelines or shirk from a fight. I have always believed that hope is that stubborn thing inside us that insists, despite all the evidence to the contrary, that something better awaits us so long as we have the courage to keep reaching, to keep working, to keep fighting.
If a thing is worth doing, it is worth doing well. If it is worth having, it is worth waiting for. If it is worth attaining, it is worth fighting for. If it is worth experiencing, it is worth putting aside time for.