under the burden. How, then, is this scientific knowledge to grow? Certainly not without controversy, but certainly also not without coherent, steady, and persistent effort, proceeding on the lines already cut, breaking new ground when possible, correcting old errors when necessary.
3. It is another feature of the modern industrial system that, like every high organization, it requires men of suitable ability and skill at its head. The qualities which are required for a great banker, merchant, or manufacturer are as rare as any other great gifts among men, and the qualities demanded, or the degree in which they are demanded, are increasing every day with the expansion of the modern industrial system. The qualities required are those of the practical man, properly so called: sagacity, good judgment, prudence, boldness, and energy. The training, both scientific and practical, which is required for a great master of industry is wide and various. The great movements of industry, like all other great movements, present subordinate phenomena which are apparently opposed to, or inconsistent with their great tendencies and their general character. These phenomena, being smaller in scope, more directly subject to observation and therefore apparently more distinct and positive, are well calculated to mislead the judgment, either of the practical man or of the scientific student. In nothing, therefore, does the well-trained man distinguish himself from the ill-trained man more than in the balance of judgment by which he puts phenomena in their true relative position and refuses to be led astray by what is incidental or subsidiary. If, now, the question is asked, whether we have produced a class of highly trained men, competent to organize labor, transportation, commerce, and banking, on the scale required by the modern system, as rapidly as the need for them has increased, I believe no one will answer in the affirmative.
4. Another observation to which we are led upon notic-
