But it soon became very evident that the Rationalists and Supernaturalists were unable to harmonize. The points of difference were so decided that it was vain to expect a union. Reinhard was correct in his opinion that one or the other would have to yield. Just at the crisis when these two systems were attracting greatest attention, Schleiermacher published his _System of Doctrines_, 1821. In this work he proved what had not been conceived by any writer save himself, that there was another road to progress. As soon as it gained a hearing the disputants saw that their arguments were no longer of value, that the ground of the discussion was altogether changed, and that the cause of faith must eventually triumph. The book was a complete surprise to all parties. It was a stroke of genius, destined alike to recast existing theology and to create a new public sentiment for the future. The leading ideas developed in this master-piece of theology are Christ, Religion, and the Church. The Rationalists had ever held that reason is the criterion of truth, but Schleiermacher elevates Christian consciousness to the throne. They had reduced religion to a mere formal morality; yet he shows that religion and morality are very different, and that the former consists neither in knowledge or action, but in the sentiment or feeling of the heart. Thus he develops the opinion first published in the _Discourses on Religion_. He uses the term "piety" to designate religion. This piety should become the great spring of our life and the inspiring power of faith. There is no real inconsistency between knowledge and piety; they can harmonize beautifully when carried to their loftiest extent. The religious feeling, which judges truth, is characterized by absolute dependence. This is not degrading to man, but his true dignity consists in it. We have different conceptions of God, derived from the feeling of dependence, which is varied according to the nature of outward circumstances. Christ must be judged by us not so much according to the received accounts of his life as by his great relations to us as Redeemer and Saviour. Our view of him must be deeper than his mere incarnation. He was concerned in creation just so far as it was not completed until redeemed. If we would have communion with God we can enjoy it only through the medium of Christ. The peculiar value of redemption lies in its applicability to our necessity for salvation. The very sinlessness of Christ can be in a measure incorporated with our humanity, and we should aim after the mind that was in Christ. We are never fully united with Christ until we have a perfect spirit of dependence. When this occurs, the soul is passing into the glorious condition of the new birth. The church is the depository of that spirit of Christ which every believer must enjoy in order to inherit eternal life. The church, however, is not self-existent. Like the heavenly