There are mental differences no less pronounced. No adjective has been more frequently applied to the Anglo-Saxon than the word "dull." The American mind has been accused of ignorance, superficiality, levity, commonplaceness, and dozens of other defects, but "dulness" is not one of them. "Smartness," rather, is the preferred epithet of derogation; or, to rise a little in the scale of valuation, it is the word "cleverness," used with that lurking contempt for cleverness which is truly English and which long survived in the dialect of New England, where the village ne'er-do-well or Jack-of-all-trades used to be pronounced a "clever" fellow. The variety of employments to which the American pioneers were obliged to betake themselves has done something, no doubt, to produce a national versatility, a quick assimilation of new methods and notions, a ready adaptability to novel emergencies. An invaluable pioneer trait is curiosity; the settler in a new country, like Moses in the wilderness of Arabia, must "turn aside to see"; he must look into things, learn to read signs,--or else the Indians or frost or freshet will soon put an end to his pioneering. That curiosity concerning strangers which so much irritated Dickens and Mrs. Trollope was natural to the children of Western emigrants to whom the difference between Sioux and Pawnee had once meant life or death. "What's your business, stranger, in these parts?" was an instinctive, because it had once been a vital, question. That it degenerates into mere inquisitiveness is true enough; just as the "acuteness," the "awareness," essential to the existence of one generation becomes only "cuteness," the typical tin-pedler's habit of mind, in the generation following.