As I observed in dealing with the political organisation, Christianity is not a set of ideas but a wealthy and powerful corporation. Once it was a body of men holding certain beliefs: now it is, in essence, an organisation for the enforcement of those beliefs. It is, in the main, this professional or corporate interest which sustains Christianity in Europe: but it is losing heavily. I have shown (_Decay of the Church of Rome_) that the oldest branch of the Church has lost about a hundred million followers in a hundred years. I do not think that the Protestant Churches, being more progressive and less offensive in their tactics, have lost so heavily, but the extraordinary decay of churchgoing in cities like Berlin, London, and New York is suggestive. In spite of all the tricks and devices of the clergy--the vestments and concerts, the matrimonial agencies and philanthropic coercion, the Y.M.C.A.'s and P.S.A.'s and all the rest--the people still fall away. No proof could be formulated to-day that even the majority of the people of Europe are Christians. The thoughtful minority in the religious world are retreating upon the liberal theism which so many of our cultural leaders profess, or upon some even more vague mysticism. Into this further province it is not my intention to go. The world will, no doubt, long remain divided in opinion, or in sentiment, on fundamental religious issues, and for my practical purpose this difference is of no account. There is, however, one last consideration put forward by the clergy which it may be useful to consider.