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Classification of the Sci
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whether it be gain or curiosity that moves those passengers to travel, whether the iron that is to be brought in the vessel is to build houses, railways, or machinery, etc.

The difference between the weaver and the ship-builder, for purposes of classification, is that the weaver can do or make a single thing applicable to various purposes, and he is not competent to take into account the purpose to be served except to a very limited extent; while the shipbuilder is skillful in many different ways all of which are contributory to the production of results of one general category, and he is competent to take into account the purposes so far as these ought to modify the performance. It is obvious that the weaver practices an art which is nearer to an art of gratification, notwithstanding his knowing less about the utility of what he does than the shipbuilder. Let us call an art such as his an art of industry, and its science, a Science of Industry.