There is food for thought in every human pursuit. In order to be successful, in order to achieve high aims, the laboring man must not only think, but be capable of thinking profoundly. Indeed, every man may live like a philosopher, and be a philosopher, if he will. But no man can be a true philosopher who is not both a practical worker and a practical thinker. There is nothing the world needs more than workers and thinkers to make it a paradise. The masses are workers, and if educated, would become thinkers. It is only once or twice in a century, it is said, that "God lets loose upon the earth a great thinker." Of the past, this may be true, but not of the present. We have scores of men now living who are greater thinkers than Plato, Newton, or Franklin, because modern science has introduced them into broader fields of thought. The chemists, geologists, inventors, and discoverers of the present day have never been excelled as profound thinkers. Ours is literally an age of philosophers. Truth, though eternal, is never stationary; nor will the law of progress ever reach a standpoint. There is always something to be done, some vacuum to be filled. It is said by philosophers that Nature abhors a vacuum. I do not doubt it, especially if it be a vacuum in the human head. It is pretty certain that the youthful head, if not filled with sense at the proper time, will soon be filled with nonsense. Neither errors of the head nor errors of the heart can be easily eradicated, when once implanted. The moral nature of the child may be moulded at will; but the cherished opinions of age can seldom, if ever, be either reversed or essentially modified. In the great battle of life our success as individuals must depend on the kind of armor in which we are clad, and the kind of weapons with which we are supplied. For effective service there is nothing which can be brought into the field so formidable or so irresistible as the artillery of logic. Intellect is always sure of becoming the ultimate victor. We read of giants in the chronicles of the early ages,--physical giants, who could overthrow the pillars of the proudest temples, and bear off mountains upon their shoulders; yet of what value to the world were their marvellous exploits, if really true, compared with the achievements of those intellectual giants who have appeared at different epochs, and taught mankind the most useful lessons in the arts, in the sciences, and in philosophy? And here let me say to the young aspirant for worldly honors that if he would achieve high aims, he must not only aim high, but have faith in himself as well as in a Divine Providence. Indeed, every man, however humble, may become great in his vocation, if he will; yet no man can become truly great who is not truly good.