"That will do as to that point," said the teacher. "In such a comparison as this small margins and nice points of difference are impertinent. It is enough that if the indefinite multiplication of man's wealth-producing power by inventive progress had been developed and distributed with any degree of intelligence for the general interest, poverty would have disappeared and comfort if not luxury have become the universal condition. This being a fact as plain and large as the sun, it is needless to consider the hairsplitting debates of the economists as to whether the condition of this or that class of the masses in this or that country was a grain better or two grains worse than it had been. It is enough for the purpose of the argument that nobody anywhere in any country pretended that there had been an improvement noticeable enough to make even a beginning toward that complete transformation in the human condition for the better, of which the great inventions by universal admission had contained the full and immediate promise and potency. "And now tell us, Harold, what our ancestors had to say as to this astonishing fact--a fact more marvelous than the great inventions themselves, namely, their failure to prove of any considerable benefit to mankind. Surely a phenomenon at once so amazing in itself and involving so prodigious a defeat to the hopes of human happiness must have set a world of rational beings to speculating in a very impassioned way as to what the explanation might be. One would suppose that the facts of this failure with which our ancestors were confronted would have been enough to convince them that there must be something radically and horribly wrong about any economic system which was responsible for it or had permitted it, and that no further argument would have been wanted to induce them to make a radical change in it."