We have heard a great deal of late concerning “the march of the intellect” for which the present age is supposed to be distinguished; and the phrase has been rung in our ears till it has nauseated us by its repetition, and become almost a proverbial expression of derision. But we fear that, with all its pretended illumination, the present age must be characterized by some deeper and fouler blots than have attached to any that preceded it; and that if it has bright spots, it has also darker shades and more appalling obscurations. It has, in fact, nooks and corners where every thing that is evil seems to be concentrated and condensed; dens and holes to which the Genius of Iniquity has fled, and become envenomed with newer and more malignant inspirations.
Thomas Ireland Jnr, West Port Murders (Edinburgh, 1829)