"No idea is probably more ingrained in modern thinking, no opinion is more generally accepted, no conclusion is surer to most people, than that we are in the midst of marvellous progress in this little world of ours, and that our generation is somewhere at the apex of the Pyramid of Progress, elevated thereto by the attainments of the generations that have preceded us. As the Poet Laureate put it at the close of the nineteenth century, "we are the heirs of all the ages in the foremost files of t ...