These, therefore, are not perplexed by questions such as occur to him who, looking beyond his own worldly interests and the area of daily routine, takes into view the scope of being and the profounder phenomena of human life. For such a view will inevitably engender speculation, nor can he rest until he obtains some _theory_ of existence. These very conditions of Humanity in the City, for instance--these conditions of poverty, and responsibility, and relationship, and privilege, and strife, and toil--yea, the lessons which come to us from the crowd as it flows through these streets; constitute a great problem, of which every thinking man will seek some solution. Now, throughout this entire series of discourses--although I have not deemed it necessary in every instance to make a specific application--I have assumed that you and I were looking upon these various phases of Humanity from the Christian stand-point, and therefore I could not fitly conclude this work without indicating the Help which RELIGION affords concerning these problems of existence. I observe, then, that while it may seem very simple to affirm that a _theory_ does not, in any case, alter _facts_; yet there is often an advantage in laying down this proposition. For this leads us to understand precisely what a theory _may_ do. It does not alter facts, but it throws them into new relations, and presents them in an entirely different light. Materialism, for instance, is a theory of Life; and Christianity--in which term I include not only a system of Doctrines, but of practical forces--is also a theory of Life. Now, neither of these gets rid of the great facts of existence. Men sin and suffer and die, whether we adopt the one system or the other. But, surely, when we approach these facts from the side of Religion, they appear in very different lights, and are taken up with very different results, from their appearance and effect when interpreted by the creed of Unbelief. It would be very absurd then, because Christianity does not instantly abolish, or fully explain, all these strange and darker realities, to fall back upon the opposite ground of skepticism. This is only receding from the best solution to the worst--or, rather, to no solution at all. For I maintain that Christianity gives us not merely the best, but the _only_ solution of these problems. It will be my purpose in this discourse, at least, to show what kind of help Religion _does_ afford for Humanity in all these diverse conditions; and, having done this, I shall leave it to your own convictions to decide whether it is not a great and practical Help; and whether there _is_ any other help. I propose to illustrate the influence of Religion to this effect, first--as a _Conviction_; second, as a _Working Power_; and third, as an _Interpretation_.