"It is not your love that sustains the marriage, but from now on, the marriage that sustains your love." (Dietrich Bonhoeffer, writing to a young bride and groom from his prison cell in Nazi Germany in 1943) "A good marriage is the union of two good forgivers." (Ruth Bell Graham) "I didn't marry you because you were perfect. I didn't even marry you because I loved you. I married you because you gave me a promise. That promise made up for your faults. And the promise I gave you made up for mine. Two imperfect people got married and it was the promise that made the marriage. And when our children were growing up, it wasn't a house that protected them; and it wasn't our love that protected them - it was that promise." (Thornton Wilder, "The Skin of Our Teeth") "What greater thing is there for two human souls than to feel that they are joined for life - to strengthen each other in all labor, to rest on each other in...