It is, likewise, to be considered, that contracts concerning boundaries are often left vague and indefinite, without necessity, by the desire of each party, to interpret the ambiguity to its own advantage, when a fit opportunity shall be found.  In forming stipulations, the commissaries are often ignorant, and often negligent; they are, sometimes, weary with debate, and contract a tedious discussion into general terms, or refer it to a former treaty, which was never understood.  The weaker part is always afraid of requiring explanations, and the stronger always has an interest in leaving the question undecided:  thus it will happen, without great caution on either side, that, after long treaties, solemnly ratified, the rights that had been disputed are still equally open to controversy.

In America, it may easily be supposed, that there are tracts of land not yet claimed by either party, and, therefore, mentioned in no treaties; which yet one, or the other, may be afterwards inclined to occupy; but to these vacant and unsettled countries each nation may pretend, as each conceives itself entitled to all that is not expressly granted to the other.

Here, then, is a perpetual ground of contest; every enlargement of the possessions of either will be considered as something taken from the other, and each will endeavour to regain what had never been claimed, but that the other occupied it.

Thus obscure in its original is the American contest.  It is difficult to find the first invader, or to tell where invasion properly begins; but, I suppose, it is not to be doubted, that after the last war, when the French had made peace with such apparent superiority, they naturally began to treat us with less respect in distant parts of the world, and to consider us, as a people from whom they had nothing to fear, and who could no longer presume to contravene their designs, or to check their progress.

The power of doing wrong with impunity seldom waits long for the will; and, it is reasonable to believe, that, in America, the French would avow their purpose of aggrandizing themselves with, at least, as little reserve as in Europe.  We may, therefore, readily believe, that they were unquiet neighbours, and had no great regard to right, which they believed us no longer able to enforce.

That in forming a line of forts behind our colonies, if in no other part of their attempt, they had acted against the general intention, if not against the literal terms of treaties, can scarcely be denied; for it never can be supposed, that we intended to be inclosed between the sea and the French garrisons, or preclude ourselves from extending our plantations backwards, to any length that our convenience should require.

With dominion is conferred every thing that can secure dominion.  He that has the coast, has, likewise, the sea, to a certain distance; he that possesses a fortress, has the right of prohibiting another fortress to be built within the command of its cannon.  When, therefore, we planted the coast of North America, we supposed the possession of the inland region granted to an indefinite extent; and every nation that settled in that part of the world, seems, by the permission of every other nation, to have made the same supposition in its own favour.