"Not only think of the road through which thou art travelling, but take care never to lose sight of the blessed country in which thou art shortly to arrive. Thou meetest here with passing sufferings, but will soon enjoy everlasting rest. In order to labour with constancy and cheerfulness, consider the reward."
I might say something like, don't sweat the small stuff, the best is yet to come. But I like the way St. Augustine said it, back in the A.D. 400's. He had a way with words.