Everyone laughed at Col. Prichard For buying an engine so powerful That it wrecked itself, and wrecked the grinder He ran it with. But here is a joke of cosmic size: The urge of nature that made a man Evolve from his brain a spiritual life— Oh miracle of the world!— The very same brain with which the ape and wolf Get food and shelter and procreate themselves. Nature has made man do this, In a world where she gives him nothing to do After all—(though the strength of his soul goes round In a futile waste of power, To gear itself to the mills of the gods)— But get food and shelter and procreate himself!