By all means, it is to be procured that the trunk of Nebuchadnezzar’s tree of monarchy[335] be great enough to bear the branches and the boughs; that is, that the natural subjects of the crown, or state, bear a sufficient proportion to the stranger subjects that they govern. Therefore, all states that are liberal of naturalization towards strangers are fit for empire; for to think that a handful of people can, with the greatest courage and policy in the world, embrace too large extent of dominion, it may hold for a time, but it will fail suddenly. The Spartans were a nice people in point of naturalization; whereby, while they kept their compass, they stood firm; but when they did spread, and their boughs were becoming too great for their stem, they became a windfall upon the sudden. Never any state was, in this point, so open to receive strangers into their body as were the Romans; therefore, it sorted with them accordingly, for they grew to the greatest monarchy. Their manner was to grant naturalization (which they called “jus civitatis”),[336] and to grant it in the highest degree, that is, not only “jus commercii,”[337] “jus connubii,”[338] “jus hæreditatis;”[339] but, also, “jus suffragii,”[340] and “jus honorum;”[341] and this not to singular persons alone, but likewise to whole families; yea, to cities and sometimes to nations. Add to this their custom of plantation of colonies, whereby the Roman plant was removed into the soil of other nations, and, putting both constitutions together, you will say, that it was not the Romans that spread upon the world, but it was the world that spread upon the Romans; and that was the sure way of greatness. I have marvelled sometimes at Spain, how they clasp and contain so large dominions with so few natural Spaniards;[342] but sure the whole compass of Spain is a very great body of a tree, far above Rome and Sparta at the first; and, besides, though they have not had that usage to naturalize liberally, yet they have that which is next to it; that is, to employ, almost indifferently, all nations in their militia of ordinary soldiers; yea, and sometimes in their highest commands; nay, it seemeth at this instant they are sensible of this want of natives, as by the pragmatical sanction,[343] now published, appeareth.