For the performance of work necessarily involves a workman: from the need springs the idea, and the idea makes the producer.

We only know what our senses long for and our intelligence demands; we have no keen desire for things of which we cannot conceive, and the greater our powers of conception, the greater our capabilities of production.
Thus, functions arising from needs, needs from desires, and desires from spontaneous perception and imagination, the same intelligence which imagines can also produce; consequently, no labor is superior to the laborer.

In a word, if the function calls out the functionary, it is because the functionary exists before the function.
Let us admire Nature's economy.

With regard to these various needs which she has given us, and which the isolated man cannot satisfy unaided, Nature has granted to the race a power refused to the individual.

This gives rise to the principle of the DIVISION OF LABOR,--a principle founded on the SPECIALITY OF VOCATIONS.
The satisfaction of some needs demands of man continual creation; while others can, by the labor of a single individual, be satisfied for millions of men through thousands of centuries.