If the individual to be instructed were one who had heretofore lived apart from law and government, yet capable (if such a thing were possible) of understanding the subject, it is here we ought to commence. To him it would be indispensable to explain, in the first instance, the structure of the body politic; to specify the rights surrendered by individuals; and to set before him the equivalent privileges received in exchange. _We_ too might be supposed to require a like exposition before we would be prepared to submit to the severe restraints and harsh penalties of _criminal_ law. But in regard to controversies between individuals we feel no such jealousies. In these, the law, acting but as an arbiter, indifferent between the parties, no question concerning its authority occurs to the mind. The readiness with which we acquiesce in its decisions, is strikingly manifested in the fact, that the whole of England, Ireland and the United States are, for the most part, governed by a law which has no voucher for its authority but this acquiescence. The same thing may be said of the authority of the civil law on the continent of Europe. It thus appears that the mind does not always require to be informed of the origin of the law which regulates and enforces, or protects individual rights, before it will condescend to inquire what are its behests. _Prima facie_ it should be so; but being, in point of fact, born in the midst of law, habituated to it from our infancy, and accustomed to witness uniform obedience to its authority on the part of those whom we were taught to obey, we learn to regard it as a thing _in rerum natura_, rather than of human invention; a sort of moral atmosphere, which, like that we breathe, seems a very condition of our existence. There is therefore no inconvenience to be apprehended from taking up the subject in an inverted order, treating first of individual rights, and reserving those that grow out of the relation of the citizen to the body politic, and the correlative duties of that relation, for future inquiry.