Phillips Brooks seems to have taught that regeneration is merely a natural forward step in man’s development. See his Life, 2:353—“The entrance into this deeper consciousness of sonship to God and into the motive power which it exercises is Regeneration, the new birth, not merely with reference to time, but with reference also to profoundness. Because man has something sinful to cast away in order to enter this higher life, therefore regeneration must begin with repentance. But that is an incident. It is not essential to the idea. A man simply imperfect and not sinful would still have to be born again. The presentation of sin as guilt, of release as forgiveness, of consequence as punishment, have their true meaning as the most personal expressions of man’s moral condition as always measured by, and man’s moral changes as always dependent upon, God.” Here imperfection seems to mean depraved condition as distinguished from conscious transgression; it is not regarded as sinful; it needs not to be repented of. Yet it does require regeneration. In Phillips Brooks’s creed there is no article devoted to sin. Baptism he calls “the declaration of the universal fact of the sonship of man to God. The Lord’s Supper is the declaration of the universal fact of man’s dependence upon God for supply of life. It is associated with the death of Jesus, because in that the truth of God giving himself to man found its completest manifestation.” Others seem to teach regeneration by education. Here too there is no recognition of inborn sin or guilt. Man’s imperfection of nature is innocent. He needs training in order to fit him for association with higher intelligences and with God. In the evolution of his powers there comes a natural crisis, like that of graduation of the scholar, and this crisis may be called conversion. This educational theory of regeneration is represented by Starbuck, Psychology of Religion, and by Coe, The Spiritual Life. What human nature needs however is not evolution, but involution and revolution—involution, the communication of a new life, and revolution, change of direction resulting from that life. Human nature, as we have seen in our treatment of sin, is not a green apple to be perfected by mere growth, but an apple with a worm at the core, which left to itself will surely rot and perish.