QUOTE : Why is it that great men so often have mediocrities for their offspring? Is it because the gamble of the genes that produced them—the commingling of ancestral traits and biological possibilities—was but a chance, and could not be expected to recur? Or is it because the genius exhausts in thought and toil the force that might have gone to parentage, and leaves only his diluted blood to his heirs? Or is it that children decay under ease, and early good fortune deprives them of the stimulus to ambition and growth?