Sir James Mackintosh was a man of marvelous ability. He excited in everybody who knew him great expectations, but there was no purpose in his life to act as a burning glass to collect the brilliant rays of his intellect, by which he might have dazzled the world. Most men have ability enough, if they could only focalize it into one grand, central, all-absorbing purpose, to accomplish great things.
"To encourage me in my efforts to cultivate the power of attention," said a friend of John C. Calhoun, "he stated that to this end he had early subjected his mind to such a rigid course of discipline, and had persisted without faltering until he had acquired a perfect control over it; that he could now confine it to any subject as long as he pleased, without wandering even for a moment; that it was his uniform habit, when he set out alone to walk or ride, to select a subject for reflection, and that he never suffered his attention to wander from it until he was satisfied with its examination."
"My friend laughs at me because I have but one idea," said a learned American chemist; "but I have learned that if I wish ever to make a breach in a wall, I must play my guns continually upon one point."
"It is his will that has made him what he is," said an intimate friend of Philip D. Armour, the Chicago millionaire. "He fixes his eye on something ahead, and no matter what rises upon the right or the left he never sees it. He goes straight in pursuit of the object ahead, and overtakes it at last. He never gives up what he undertakes."
While Horace Greeley would devote a column of the New York Tribune to an article, Thurlow Weed would treat the same subject in a few words in the Albany Evening Journal, and put the argument into such shape as to carry far more conviction.
"If you would be pungent," says Southey, "be brief; for it is with words as with sunbeams—the more they are condensed the deeper they burn."
"The only valuable kind of study," said Sydney Smith, "is to read so heartily that dinner-time comes two hours before you expected it; to sit with your Livy before you and hear the geese cackling that saved the Capitol, and to see with your own eyes the Carthaginian sutlers gathering up the rings of the Roman knights after the battle of Cannæ, and heaping them into bushels, and to be so intimately present at the actions you are reading of, that when anybody knocks at the door it will take you two or three seconds to determine whether you are in your own study or on the plains of Lombardy, looking at Hannibal's weather-beaten face and admiring the splendor of his single eye."
"Never study on speculation," says Waters; "all such study is vain. Form a plan; have an object; then work for it; learn all you can about it, and you will be sure to succeed. What I mean by studying on speculation is that aimless learning of things because they may be useful some day; which is like the conduct of the woman who bought at auction a brass door-plate with the name of Thompson on it, thinking it might be useful some day!"
"I resolved, when I began to read law," said Edward Sugden, afterward Lord St. Leonard, "to make everything I acquired perfectly my own, and never go on to a second reading till I had entirely accomplished the first. Many of the competitors read as much in a day as I did in a week; but at the end of twelve months my knowledge was as fresh as on the day it was acquired, while theirs had glided away from their recollection."
"Very often," says Sidney Smith, "the modern precept of education is, 'Be ignorant of nothing.' But my advice is, have the courage to be ignorant of a great number of things, that you may avoid the calamity of being ignorant of all things."