Let every one ascertain his special business and calling, and then stick to it if he would be successful.—FRANKLIN.

"Why do you lead such a solitary life?" asked a friend of Michael Angelo. "Art is a jealous mistress," replied the artist; "she requires the whole man." During his labors at the Sistine Chapel, according to Disraeli, he refused to meet any one, even at his own house.

"This day we sailed westward, which was our course," were the simple but grand words which Columbus wrote in his journal day after day. Hope might rise and fall, terror and dismay might seize upon the crew at the mysterious variations of the compass, but Columbus, unappalled, pushed due west and nightly added to his record the above words.

"Cut an inch deeper," said a member of the Old Guard to the surgeon probing his wound, "and you will find the Emperor,"—meaning his heart. By the marvelous power of concentrated purpose Napoleon had left his name on the very stones of the capital, had burned it indelibly into the heart of every Frenchman, and had left it written in living letters all over Europe. France to-day has not shaken off the spell of that name. In the fair city on the Seine the mystic "N" confronts you everywhere.

Oh, the power of a great purpose to work miracles! It has changed the face of the world. Napoleon knew that there were plenty of great men in France, but they did not know the might of the unwavering aim by which he was changing the destinies of Europe. He saw that what was called the "balance of power" was only an idle dream; that, unless some master-mind could be found which was a match for events, the millions would rule in anarchy. His iron will grasped the situation; and like William Pitt, he did not loiter around balancing the probabilities of failure or success, or dally with his purpose. There was no turning to the right nor to the left; no dreaming away time, nor building air-castles; but one look and purpose, forward, upward and onward, straight to his goal. His great success in war was due largely to his definiteness of aim. He always hit the bull's-eye. He was like a great burning-glass, concentrating the rays of the sun upon a single spot; he burned a hole wherever he went. After finding the weak place in the enemy's ranks, he would mass his men and hurl them like an avalanche upon the critical point, crowding volley upon volley, charge upon charge, till he made a breach. What a lesson of the power concentration there is in this man's life!

To succeed to-day a man must concentrate all the faculties of his mind upon one unwavering aim, and have a tenacity of purpose which means death or victory. Every other inclination which tempts him from his aim must be suppressed.

A man may starve on a dozen half-learned trades or occupations; he may grow rich and famous upon one trade thoroughly mastered, even though it be the humblest.

Even Gladstone, with his ponderous yet active brain, said he could not do two things at once; he threw his entire strength upon whatever he did. The intensest energy characterized everything he undertook, even his recreation. If such concentration of energy is necessary for the success of a Gladstone, what can we common mortals hope to accomplish by "scatteration"?

All great men have been noted for their power of concentration which makes them oblivious of everything outside their aim. Victor Hugo wrote his "Notre Dame" during the revolution of 1830, while the bullets were whistling across his garden. He shut himself up in one room, locking his clothes up in another, lest they should tempt him to go out into the street, and spent most of that winter wrapped in a big gray comforter, pouring his very life into his work.

Abraham Lincoln possessed such power of concentration that he could repeat quite correctly a sermon to which he had listened in his boyhood.