“Being in love is a good thing, but it is not the best thing. But of course, ceasing to be ‘ in love’ need not mean ceasing to love. Love is not merely a feeling. It is a deep unity, maintained by the will and deliberately strengthened by habit. [Two people] can have this love for each other even at those moments when they do not like each other; as you love yourself even when you don’t like yourself. This quieter love enables them to keep the promise. It is on this love that the engine of marriage is run: being in love was the explosion that started it.”

– C.S. Lewis