" Linking their names with Euler’s infinity symbol means . . .” He paused, considering how best to explain it. “The two of them formed a complete unit . . . a togetherness . . . that contained infinity. Their marriage had a beginning and end, but every day of it was filled with forever. It’s a beautiful concept.” He paused before adding "
― Lisa Kleypas , Chasing Cassandra (The Ravenels, #6)