With all that tenderness of nature whose sweet sadness touched whoever saw him with something of its own pathos, there was no trace of sentimentalism in his speech or action. He seems to have had one rule of conduct, always that of practical and successful politics, to let himself be guided by events, when they were sure to bring him out where he wished to go, though by what seemed to unpractical minds, which let go the possible to grasp at the desirable, a longer road. Undoubtedly the highest function of statesmanship is by degrees to accommodate the conduct of communities to ethical laws, and to subordinate the conflicting self-interests of the day to higher and more permanent concerns. But it is on the understanding, and not on the sentiment, of a nation that all safe legislation must be based. Voltaire's saying, that "a consideration of petty circumstances is the tomb of great things," may be true of individual men, but it certainly is not true of governments. It is by a multitude of such considerations, each in itself trifling, but all together weighty, that the framers of policy can alone divine what is practicable and therefore wise. The imputation of inconsistency is one to which every sound politician and every honest thinker must sooner or later subject himself. The foolish and the dead alone never change their opinion. The course of a great statesman resembles that of navigable rivers, avoiding immovable obstacles with noble bends of concession, seeking the broad levels of opinion on which men soonest settle and longest dwell, following and marking the almost imperceptible slopes of national tendency, yet always aiming at direct advances, always recruited from sources nearer heaven, and sometimes bursting open paths of progress and fruitful human commerce through what seem the eternal barriers of both. It is loyalty to great ends, even though forced to combine the small and opposing motives of selfish men to accomplish them; it is the anchored cling to solid principles of duty and action, which knows how to swing with the tide, but is never carried away by it,--that we demand in public men, and not sameness of policy, or a conscientious persistency in what is impracticable. For the impracticable, however theoretically enticing, is always politically unwise, sound statesmanship being the application of that prudence to the public business which is the safest guide in that of private men. No doubt slavery was the most delicate and embarrassing question with which Mr. Lincoln was called on to deal, and it was one which no man in his position, whatever his opinions, could evade; for, though he might withstand the clamor of partisans, he must sooner or later yield to the persistent importunacy of circumstances, which thrust the problem upon him at every turn and in every shape.