THE SOVEREIGN  
This formula shows us that the act of association comprises a mutual undertaking between the public and the individuals, and that each individual, in making a contract, as we may say, with himself, is bound in a double capacity; as a member of the Sovereign he is bound to the individuals, and as a member of the State to the Sovereign. But the maxim of civil right, that no one is bound by undertakings made to himself, does not apply in this case; for there is a great difference between incurring an obligation to yourself and incurring one to a whole of which you form a part.
Attention must further be called to the fact that public deliberation, while competent to bind all the subjects to the Sovereign, because of the two different capacities in which each of them may be regarded, cannot, for the opposite reason, bind the Sovereign to itself; and that it is consequently against the nature of the body politic for the Sovereign to impose on itself a law which it cannot infringe. Being able to regard itself in only one capacity, it is in the position of an individual who makes a contract with himself; and this makes it clear that there neither is nor can be any kind of fundamental law binding on the body of the people—not even the social contract itself. This does not mean that the body politic cannot enter into undertakings with others, provided the contract is not infringed by them; for in relation to what is external to it, it becomes a simple being, an individual.
But the body politic or the Sovereign, drawing its being wholly from the sanctity of the contract, can never bind itself, even to an outsider, to do anything derogatory to the original act, for instance, to alienate any part of itself, or to submit to another Sovereign. Violation of the act by which it exists would be self-annihilation; and that which is itself nothing can create nothing.
As soon as this multitude is so united in one body, it is impossible to offend against one of the members without attacking the body, and still more to offend against the body without the members resenting it. Duty and interest therefore equally oblige the two contractin............