"May you love as long as you live and live as long as you love".  Robert Heinlein
"Whenever you give your time, you are making a sacrifice, and sacrifice is the essence of love."
"Love thy neighbor as thyself".
The decision to kiss for the first time is the most crucial in any love story. It changes the relationship of two people much more strongly than even the final surrender; because this kiss already has within it that surrender."  Emil Ludwig
"Love's nothing else than a war in which both are the winners."  Madonna
"Forgiveness is the final form of love."  Reinhold Niebuhr
"Love vanquishes time. To lovers, a moment can be eternity, eternity can be the tick of a clock."  Mary Parrish
"He taught me how to love, but not how to stop."
"If the universe has any purpose more important then topping a woman you love and making a baby with her hearty help, I have never heard of it."  Robert A. Heinlein