When we have thus verified the internal structure of a race we must consider the environment in which it lives. For man is not alone in the world; nature envelops him and other men surround him; accidental and secondary folds come and overspread the primitive and permanent fold, while physical or social circumstances derange or complete the natural groundwork surrendered to them. At one time climate has had its effect. Although the history of Aryan nations can be only obscurely traced from their common country to their final abodes, we can nevertheless affirm that the profound difference which is apparent between the Germanic races on the one hand, and the Hellenic and Latin races on the other, proceeds in great part from the differences between the countries in which they have established themselves—the former in cold and moist countries, in the depths of gloomy forests and swamps, or on the borders of a wild ocean, confined to melancholic or rude sensations, inclined to drunkenness and gross feeding, leading a militant and carnivorous life; the latter, on the contrary, living amidst the finest scenery, alongside of a brilliant, sparkling sea inviting navigation and commerce, exempt from the grosser cravings of the stomach, disposed at the start to social habits and customs, to political organization, to the sentiments and faculties which develop the art of speaking, the capacity for enjoyment and invention in the sciences, in art, and in literature. At another time, political events have operated, as in the two Italian civilizations: the first one tending wholly to action, to conquest, to government, and to legislation, through the primitive situation of a city of refuge, a frontier emporium, and of an armed aristocracy which, importing and enrolling foreigners and the vanquished under it, sets two hostile bodies facing each other, with no outlet for its internal troubles and rapacious instincts but systematic warfare; the second one, excluded from unity and political ambition on a grand scale by the permanency of its municipal system, by the cosmopolite situation of its pope and by the military intervention of neighboring states, and following the bent of its magnificent and harmonious genius, is wholly carried over to the worship of voluptuousness and beauty. Finally, at another time, social conditions have imposed their