"Do you believe that we might last a thousand years or more if not for this our flesh and blood? It ties you and me right up tight. Celebrate, we will, 'cause life is short, but sweet for certain. Hey, we climb on two by two to be sure these days continue." - from Two Step by Dave Matthews Band
I've always loved this quote because I think it is a beautiful metaphor for the cycle of life and how fulfilling it is to share it with someone, even though we are bound to death by mortality. Although it is our "flesh and blood" that make us human, and therefore doomed to die, our "flesh and blood" is what allows us to bond to each other through marriage and children and the continuation of life.