This was no negative exploration. It was the hard, earnest labor of years, self-abnegation, enduring patience, and exalted fortitude, such as ordinary men fail to exhibit. And he had achieved a wonderful deed. The finding of the poles, north and south, is no greater feat than his. For, after all, what is it to humanity that the magnetic pole, north or south, is a few degrees east or west of a certain point in the frozen seas and barren ice mountains? What can humanity offer as a reward to those whose bodies lie under cairns of ice save a barren recognition of their heroism? What have their lives served, beyond that of examples of heroism and determination? Bronze tablets will record their deeds, but no races will arise in future years to call them blessed. Cold marble will enshrine their memory; but there will be no fair commerce, nor civilization, nor the thankful prayers of those who have been led to know God. In his earlier years of exploration, Livingstone became convinced that the success of the white missionary in a field like Africa is not to be reckoned by the tale of doubtful conversions he can send home each year, that the proper work of such men was that of pioneering, opening up, starting new ground, leaving native agents to work it out in detail. The whole of his subsequent career was a carrying out of this idea. It was the idea of commerce, bringing the virgin country within the reach of the world, putting the natives in that relation to the rest of humanity which would most nearly make for their efficiency, if not in their own generation, at least in the next. Shall we not say that this is the truest ideal of social service--to plan, not for the present, but for the future; to be content, not with the barren achievement of exploration, the satisfaction that comes with the saying, "I am the first who has trod this soil!" but to be able to say, "Through me, generations may be helped?" Says a biographer of Dr. Livingstone, "His work in exploration is marked by rare precision and by a breadth of observation which will make it forever a monument to the name of one of the most intrepid travellers of the nineteenth century. His activity embraced the field of the geographer, naturalist, benefactor of mankind, and it can justly be said that his labors were the first to lift the veil from the 'Dark Continent.'" During the thirty years of his work he explored alone over one-third of the vast continent; a feat which no single explorer has ever equalled. But it must be remembered that even though he had severed his connection with the missionary society that he regarded himself to the last as a "Pioneer Missionary."