Chapter 4, "The Ethics of Elfland"

When the business man rebukes the idealism of his office-boy, it is
commonly in some such speech as this: "Ah, yes, when one is young, one
has these ideals in the abstract and these castles in the air; but in
middle age they all break up like clouds, and one comes down to a belief
in practical politics, to using the machinery one has and getting on
with the world as it is."