Certainly not to halt in an arbitrary, inconceivable, and impossible juste milieu; it is to generalize further, and discover a third principle, a fact, a superior law, which shall explain the fiction of capital and the myth of property, and reconcile them with the theory which makes labor the origin of all wealth. This is what socialism, if it wishes to proceed logically, must undertake. In fact, the theory of the real productivity of labor, and that of the fictitious productivity of capital, are both essentially economical: socialism has endeavored only to show the contradiction between them, without regard to experience or logic; for it appears to be as destitute of the one as of the other. Now, in law, the litigant who accepts the authority of a title in one particular must accept it in all; it is not allowable to divide the documents and proofs. Had socialism the right to decline the authority of political economy in relation to usury, when it appealed for support to this same authority in relation to the analysis of value? By no means. All that socialism could demand in such a case was, either that political economy should be directed to reconcile its theories, or that it might be itself intrusted with this difficult task. The more closely we examine these solemn discussions, the more clearly we see that the whole trouble is due to the fact that one of the parties does not wish to see, while the other refuses to advance. It is a principle of our law that no one can be deprived of his property except for the sake of general utility, and in consideration of a fair indemnity payable in advance. This principle is eminently an economic one; for, on the one hand, it assumes the right of eminent domain of the citizen expropriated, whose consent, according to the democratic spirit of the social compact, is necessarily presupposed. On the other hand, the indemnity, or the price of the article taken, is fixed, not by the intrinsic value of the article, but by the general law of commerce,--supply and demand; in a word, by opinion. Expropriation in the name of society may be likened to a contract of convenience, agreed to by each with all; not only then must the price be paid, but the convenience also must be paid for: and it is thus, in reality, that the indemnity is estimated. If the Roman legists had seen this analogy, they undoubtedly would have hesitated less over the question of expropriation for the sake of public utility. Such, then, is the sanction of the social right of expropriation: indemnity.