The bearing on modern Christianity is not far to seek. A doctor recently remarked to the present writer that one had only to enter the several Churches of a certain town to discover that Christians were now in hopeless confusion, ignorant as to what they did or did not believe, and that if the professed followers of the faith could not state their doctrine coherently, others might well be excused from attempting the task of ascertaining what Christianity now meant. The argument is not unusual, but it is profoundly mistaken. It might have been retorted that divergencies of medical opinion (and many patients will bear witness that they are neither slight nor few) are no indication whatever of the essential unsoundness of the science of medicine, but rather the guarantee of its advance into more accurate knowledge. Moreover had the critic been in actual touch with the feeling and activities of the Churches in question, he would have recognised that the points of disagreement, though important, were not upon the vital question of faith in God and general attitude towards life; so that whilst he personally might still have been unable to accept Christian belief, he could not possibly have formulated such an indictment as appears above. The real peril of Christian theology has not been vagueness, but the Hellenic tendency to essay the definition of all things to the last _iota_. But from the perils inherent in that attitude Christianity has been delivered by the passionate instinct of mankind for truth, and by the reforming energy of great individuals; and will be delivered, so long as the Church has faith in the guiding Spirit of God.