Christian Science was first introduced by Jesus: he explained and demonstrated it, healing the sick and triumphing over sin and death. His works were based on a divine Principle that he understood and could teach, and they can be demonstrated on no other basis. The leading points of this divine Science Jesus explained briefly in these words: "Thou shalt love thy neighbor as thyself." The Principle and rules of this Science he gave in the Sermon on the Mount. The application of this divine Principle, and its power to heal the sick and reform the sinner, he taught his disciples.
—Science and Health.