The truth about Mr. Lincoln is that he read less and thought more than any man in his sphere in America. No man can put his finger on any great book written in the last or present century that he read thoroughly. When young he read the Bible, and when of age he read Shakespeare; but, though he often quoted from both, he never read either one through. He is acknowledged now to have been a great man, but the question is what made him great. I repeat, that he read less and thought more than any man of his standing in America, if not in the world. He possessed originality and power of thought in an eminent degree. Besides his well established reputation for caution, he was concentrated in his thoughts and had great continuity of reflection. In everything he was patient and enduring. These are some of the grounds of his wonderful success. Not only were nature, man, and principle suggestive to Mr. Lincoln, not only had he accurate and exact perceptions, but he was causative; his mind, apparently with an automatic movement, ran back behind facts, principles, and all things to their origin and first cause--to that point where forces act at once as effect and cause. He would stop in the street and analyze a machine. He would whittle a thing to a point, and then count the numberless inclined planes and their pitch making the point. Mastering and defining this, he would then cut that point back and get a broad transverse section of his pine-stick, and peel and define that. Clocks, omnibuses, language, paddle-wheels, and idioms never escaped his observation and analysis. Before he could form an idea of anything, before he would express his opinion on a subject, he must know its origin and history in substance and quality, in magnitude and gravity. He must know it inside and outside, upside and downside. He searched and comprehended his own mind and nature thoroughly, as I have often heard him say. He must analyze a sensation, an idea, and run back in its history to its origin, and purpose. He was remorseless in his analysis of facts and principles. When all these exhaustive processes had been gone through with he could form an idea and express it; but no sooner. He had no faith, and no respect for "say so's," come though they might from tradition or authority. Thus everything had to run through the crucible, and be tested by the fires of his analytic mind; and when at last he did speak, his utterances rang out with the clear and keen ring of gold upon the counters of the understanding. He reasoned logically through analogy and comparison. All opponents dreaded his originality of idea, his condensation, definition, and force of expression; and woe be to the man who hugged to his bosom a secret error if Lincoln got on the chase of it. I repeat, woe to him! Time could hide the error in no nook or corner of space in which he would not detect and expose it.