remained Tartars or Turcomans, as they were originally; because the way of the Caucasus was a sheer descent from Turkistan into the country which they occupy, but the way of the Aral was a circuitous course, leading them through many countries--through Sogdiana, Khorasan, Zabulistan, and Persia,--with many fortunes, under many masters, for many hundred years, before they came round to the region to which their Turcoman brethren attained so easily, but with so little eventual advantage. My meaning will be clearer, as I proceed. 5. 1. First of all, we may say that the very region into which they came, tended to their civilization. Of course the peculiarities of soil, climate, and country are not by themselves sufficient for a social change, else the Turcomans would have the best right to civilization; yet, when other influences are present too, climate and country are far from being unimportant. You may recollect that I have spoken more than once of the separation of a portion of the Huns from the main body, when they were emigrating from Tartary into Europe, in the time of the Goths.[21] These turned off sharp to the South immediately on descending the high table-land; and, crossing the Jaxartes, found themselves in a fertile and attractive country, between the Aral and their old country, where they settled. It is a peculiarity of Asia that its regions are either very hot or very cold. It has the highest mountains in the world, bleak table-lands, vast spaces of burning desert, tracts stretched out beneath the tropical sun. Siberia goes for a proverb for cold: India is a proverb for heat. It is not adequately supplied with rivers, and it has little of inland sea. In these respects it stands in singular contrast with Europe. If then the tribes which inhabit a cold country have, generally speaking, more energy than those which are relaxed by the heat, it follows that you will have in Asia two descriptions of people brought together in extreme, sometimes in sudden, contrariety with each other, the strong and the weak. Here then, as some philosophers have argued,[22] you have the secret of the despotisms and the vast empires of which Asia has been the seat; for it always possesses those who are naturally fitted to be tyrants, and those also whose nature it is to tremble and obey. But we may take another, perhaps a broader, view of the phenomenon. The sacred writer says: "Give me neither riches nor beggary:" and, as the extremes of abundance and of want are prejudicial to our moral well-being, so they seem to be prejudicial to our intellectual nature also. Mental cultivation is best carried on in temperate regions. In the north men are commonly too cold, in the south too hot, to think, read, write, and act. Science, literature, and art refuse to germinate in the frost, and are burnt up by the sun.