Love can be unselfish, in the sense of being benevolent and... - Mortimer Adler

"Conjugal love, or the friendship of spouses, can persist even after sexual desires have weakened, withered, and disappeared."

"Aristotle uses a mother's love for her child as the prime example of love or friendship."

"Friendship is a very taxing and arduous form of leisure activity."

"The love which moves the world, according to common Christian belief, is God's love and the love of God."