Below is an excerpt from a report Alexander Hamilton wrote around the year 1791 entitled "Report on the Subject of Manufactures":

It is now proper to proceed a step further, and to enumerate the principal circumstances from which it may be inferred that manufacturing establishments not only occasion a positive augmentation of the produce and revenue of the society, but that they contribute essentially to rendering them greater than they could possibly be, without such establishments. These circumstances are:

1. The division of labor.
2. An extension of the use of machinery.
3. Additional employment to classes of the community not ordinarily engaged in the business.
4. The promoting of emigration from foreign countries.
5. The furnishing greater scope for the diversity of talents dispositions, which discriminate men from each other.
6. The affording a more ample and various field for enterprise.
7. The creating, in some instances, a new, and securing, in all, a more certain and steady demand for the surplus produce of the soil.

Each of these circumstances has a considerable influence upon the total mass of industrious effort in a community; together, they add to it a degree of energy and effect, which are not easily conceived.