The promise

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