There is one other fact that brings into prominence the importance of the kind of reaction which we make to environmental stimuli. Put briefly, we may say that an important distinction between the animal and man is that the animal passes its existence in a comparatively simple environment where the experiences are few in kind and often repeated, whereas with man the environment is very complex, the experiences are varied in character, and may be only repeated after long intervals. The consequence is that in order to get through life an animal needs a few simple instincts which automatically respond to frequently repeated experiences, while on the other hand there must be with man opportunity for the kind of response which goes under the name of intelligent action. It is this which gives us the reason, or the explanation, why of all animals the human being is born the most helpless, and why he remains helpless for a longer period than does any other. The prolonged infancy is the opportunity given to the human being to acquire the benefits of education and so to reap the full advantage of that social heritage which, as we have shown, raises him so far above the level of past generations. Or we may express the matter with the late Professor Fiske, who was the first, I think, to dwell at length upon this phenomenon, that the distinction between man and the animal world is that in the one case we have developed instincts with small capacity for education, in the other few instincts with great capacity for education. It is often said that the Churches have failed to pay attention to education, or have not taken it seriously. That is quite wrong. It may, indeed, be said that they have never failed to attend to education, and have always taken it seriously--with disastrous results to education and to social life. Ever since the birth of the modern movement for education the Church has fought hard to maintain its control of schools, and there is every reason why this should be so. Survival in the animal world may be secured in two ways. On the one side we may have a continuance of a special sort of environment to which a given structure is properly adapted; on the other there may be a modification of the animal to meet the demands of a changing environment.