We of this day must try to solve many social and industrial problems, requiring to an especial degree the combination of indomitable resolution with cool-headed sanity. We can profit by the way in which Lincoln used both these traits as he strove for reform. We can learn much of value from the very attacks which following that course brought upon his head, attacks alike by the extremists of revolution and by the extremists of reaction. He never wavered in devotion to his principles, in his love for the Union, and in his abhorrence of slavery. Timid and lukewarm people were always denouncing him because he was too extreme; but as a matter of fact he never went to extremes, he worked step by step; and because of this the extremists hated and denounced him with a fervor which now seems to us fantastic in its deification of the unreal and the impossible. At the very time when one side was holding him up as the apostle of social revolution because he was against slavery, the leading abolitionist denounced him as the "slave hound of Illinois." When he was the second time candidate for President, the majority of his opponents attacked him because of what they termed his extreme radicalism, while a minority threatened to bolt his nomination because he was not radical enough. He had continually to check those who wished to go forward too fast, at the very time that he overrode the opposition of those who wished not to go forward at all. The goal was never dim before his vision; but he picked his way cautiously, without either halt or hurry, as he strode toward it, through such a morass of difficulty that no man of less courage would have attempted it, while it would surely have overwhelmed any man of judgment less serene. Yet perhaps the most wonderful thing of all, and, from the standpoint of the America of to-day and of the future, the most vitally important, was the extraordinary way in which Lincoln could fight valiantly against what he deemed wrong and yet preserve undiminished his love and respect for the brother from whom he differed. In the hour of a triumph that would have turned any weaker man's head, in the heat of a struggle which spurred many a good man to dreadful vindictiveness, he said truthfully that so long as he had been in his office he had never willingly planted a thorn in any man's bosom, and besought his supporters to study the incidents of the trial through which they were passing as philosophy from which to learn wisdom and not as wrongs to be avenged; ending with the solemn exhortation that, as the strife was over, all should reunite in a common effort to save their common country.