Love is a life, a coupling together the loving and the loved. For meekness maketh us sweet to God; purity joins us to God; love makes us one with God. Love is fairhead [beauty] of all virtues. Love is [the] thing through the which God loves us, and we God, and each one of us other. Love is [the] desire of the heart, ever thinking to that that it loves; and when it has that it loves, then it joys, and nothing may make it sorry. Love is yearning between two, with lastingness of thought. Love is a stirring of the soul, for to love God for himself and all other thing for God; the which love, when it is ordained in God, it does away all inordinate love in anything that is not good. But all deadly sin is inordinate love in a thing that it naught; then love puts out all deadly sin. Love is a virtue that is rightest affection of man's soul. Truth may be without love, but it may naught help without it. Love is perfection of letters, virtue of prophecy, fruit of truth, help of sacraments, stabling of with and cunning [knowledge], riches of poor men, live of dying men. See how good love is.
Richard Rolle: The Form of Living.