Msgr. Stuart Swetland describes practical ways in which Catholics may live out principles of social teaching, citing the personal experiences of Pope John Paul II, Bl. Mother Teresa and St. Maximilian Kolbe, among others. Msgr. Swetland shows that the law of charity should be the law by which we live, for: "As you did these things unto the least of these my brethern, you did it to me" (Mt 25:40).