460 HARVARD LAW REVIEW. to do unless we have the boundary constantly before our minds. The law talks about rights, and duties, and malice, and intent, and negligence, and so forth, and nothing is easier, or, I may say, more commiionin legal reasoning, than to take these words in their moral sense, at some stage of the argument, and so to drop into fallacy. For instance, when we speak of the rights of man in a moral sense, we mean to mark the limits of interference with indi- vidual freedom which we think are prescribed by conscience, or by our ideal, however reached. Yet it is certain that many laws have been enforced in the past, and it is likely that some are enforced now, which are condemned by the most enlightened opinion of the time, or which at all events pass the limit of inter- ference as many consciences would draw it. Manifestly, therefore, nothing but confusion of thought can result from assuming that the rights of man in a moral sense are equally rights in the sense of the Constitution and the law. No doubt simple and extreme cases can be put of imaginable laws which the statute-making power would not dare to enact, even in the absence of written constitutional prohibitions, because the community would rise in rebellion and fight; and this gives some plausibility to the propo- sition that the law, if not a part of morality, is limited by it. But this limit of power is not coextensive with any system of morals. For the most part it falls far within the lines of any such system, and in some cases may extend beyond them, for reasons drawn from the habits of a particular people at a particular time. I once heard the late Professor Agassiz say that a German population would rise if you added two cents to the price of a glass of beer. A statute in such a case would be empty words, not because it was wrong, but because it could not be enforced. No one will deny that wrong statutes can be and are enforced, and we should not all agree as to which were the wrong ones. The confusion with which I am dealing besets confessedly legal conceptions. Take the fundamental question, What constitutes the law? You will find some text writers telling you that it is somethingf different from what is decided by the courts of Massa- chusetts or England, that it is a system of reason, that it is a deduction from principles of ethics or admitted axioms or what not, which may or may not coincide with the decisions. But if we take the view of our friend the bad man we shall find that he does not care two straws for the axioms or deductions, but that
