S. That they may eat.
L. Now then, according to man's own reasoning, what is man for?
S. Alas-alas!
L. What is he for?
S. To-to-furnish food for microbes.
L. Manifestly. A child could see it. Now then, with this common-sense light to aid your perceptions, what are the air, the land, and the ocean for?
S. To furnish food for man so that he may nourish, support, and multiply and replenish the microbes.
L. Manifestly. Does one build a boarding-house for the sake of the boarding-house itself or for the sake of the boarders?
S. Certainly for the sake of the boarders.
L. Man's a boarding-house.