It is perfectly legitimate, although it is by no means the highest motive, to appeal to feeling as a stimulus to action. We have a right to base our urging of Christian men and women to missionary work either at home or abroad, upon the ground of the condition of the men to whom the Gospel has to be carried. I know that if taken alone it is a very inadequate motive. I believe that any failure that may be manifest in the interest of Christian people in missionary work is largely traceable to the blunder we have made in dwelling on superficial motives more than we ought to have done, in proportion to the degree in which we have dwelt on the deepest. We have been gathering the surface-water instead of going right down to the green sand, to which the artesian well must be sunk if the stream is to come up without pumping or wasting. So I say that a deeper reason than the sorrow and darkness of the heathen is--'the love of Christ constraineth me'; but yet the first is a legitimate one. Only remember this, that Bishop Butler taught us long ago, that if you excite emotions which are intended to lead to action, and the action does not follow, the excitation of the emotion without its appropriate action makes the heart a great deal harder than it was before. That is why it is playing with edged tools to speak so much to our Christian audiences, as we sometimes hear done, about the condition of the heathen as a stimulus to missionary work. If a man does not respond and do something, some crust of callousness and coldness comes over his own heart. You cannot indulge in the luxury of emotion which you do not use to drive your spindles, without doing yourselves harm. It is never intended to be blown off as waste steam and allowed to vanish into the air. It is meant to be conserved and guided, and to have something done with it. Therefore beware of sentimental contemplation of the sad condition of the shepherdless sheep which does not move you to do anything to help them.