[Footnote 214: "It is intellectual culture which contributes most to diversify the features. Barbarous nations have rather a physiognomy of tribe or horde than one peculiar to such or such an individual. The savage and civilized man are like those animals of the same species, several of which rove in the forest, while others connected with us share in the benefits and evils that accompany civilization. The varieties of form and color are frequent only in domestic animals. How great is the difference with respect to mobility of feature and variety of physiognomy between dogs again become savage in the New World, and those whose slightest caprices are indulged in the houses of the opulent. Both in men and animals the emotions of the soul are reflected in the features; and the features acquire the habit of mobility in proportion as the emotions of the mind are more frequent, more varied, and more durable. In every condition of man, it is not the energy or the transient burst of the passions which give expression to the features; it is rather that sensibility of the soul which brings us continually into contact with the external world, multiplies our sufferings and our pleasures, and reacts at once on the physiognomy, the manners, and the language. If the variety and mobility of the features embellish the domain of animated nature, we must admit also that both increase by civilization without being produced by it alone. In the great family of nations, no other race unites these advantages to a higher degree than that of Caucasus or the European. It must be admitted that this insensibility of the features is not peculiar to every race of men of a very dark complexion: it is much less apparent in the African than in the natives of America."--Humboldt's _Personal Narrative_, vol. iii., p. 230.] [Footnote 215: Tacitus, in his speculations on the peopling of Britain, distinguishes very beautifully between what may belong to the ultimate influences of the country, and what may pertain to an old, unalterable type in the immigrated race. "Britanniam qui mortales initio coluerunt, indigenae an advecti, ut inter barbaros, parum compertum. Habitus corporis varii, atque ex eo argumenta; namque rutilae Caledoniam habitantium comae, magni artus Germanicam originem adseverant. Silurum colorati vultus et torti plerumque crines, et posita contra Hispania, Iberos veteres trajecisse, easque sedes occupasse fidem faciunt: proximi Gallis et similes sunt, seu durante originis vi; seu, procurrentibus in divisa terris, positio coeli corporibus habitum dedit."--_Agricola_, cap. ii.