The wandering Arabs, who are the only nations that profess robbery at the present day, (by land,) follow still the same maxim with regard to those whose wealth they mean to enjoy. If too powerful to be compelled by force to give up what they have got, they traffic and barter with the merchants of a caravan; but if they find themselves able to take, they never give themselves the trouble to adopt the legitimate but less expeditious method of plunder and robbery =sic=. [end of page #175] As it has been found that wealth operates, by degrees, in destroying the bravery of a people, after a certain time, so it happens that, in the common course of things, a moment arrives when it is considered safe, by some one power or other, to attack the wealthy nation, and partake of its riches; thus it was that the cities of Tyre and of Babylon were attacked by Alexander; and thus it was that his successors, in their turn, were attacked and conquered by the Romans; and, again, the Romans themselves, by the barbarous nations of the north. Besides those great revolutions, of which the consequences were permanent, there have been endless and innumerable struggles for the possession of wealth, amongst different nations; but the real and leading causes are so uniform, and so evident, that there is not a shadow of a doubt left on that subject. Mr. Burke had good reason to say that the external causes were much easier traced, and more simple, than the internal ones; for, the Romans excepted, the instances of rich nations attacking and conquering poor ones are very rare indeed. The Romans had erected their republic on a different plan from that of any other; they had neither arts, industry, nor territory of their own, and they conquered nations upon speculation, and for the sake of civilizing the people, and making them contribute revenue; how they were successful has been explained. But even the Romans would not have attacked poor nations, if they had been, at an earlier period, possessed of the means of attacking those that were wealthy. Necessity obliged them to begin with Italy: their safety made them defend themselves against the Gauls, and, till they had a navy, it was impracticable to carry their conquests into Asia or Africa; but, after they had conquered Carthage, they lost very little time in attacking Egypt, and those countries occupied by the successors of Alexander. The taking of Constantinople was the last decided victory of this sort, and in nothing but time and circumstance did it differ from the others; in all the great outlines it was exactly the same. [end of page #176] The effeminacy and luxury of the rich, those interior causes, of which we have already spoken, always give facility to those efforts which envy and avarice excite.