The husbandman needed each year a field to sow; what more convenient and simple arrangement for the barbarians,--instead of indulging in annual quarrels and fights, instead of continually moving their houses, furniture, and families from spot to spot,--than to assign to each individual a fixed and inalienable estate? It was not right that the soldier, on returning from an expedition, should find himself dispossessed on account of the services which he had just rendered to his country; his estate ought to be restored to him. It became, therefore, customary to retain property by intent alone--_nudo animo;_ it could be sacrificed only with the consent and by the action of the proprietor. It was necessary that the equality in the division should be kept up from one generation to another, without a new distribution of the land upon the death of each family; it appeared therefore natural and just that children and parents, according to the degree of relationship which they bore to the deceased, should be the heirs of their ancestors. Thence came, in the first place, the feudal and patriarchal custom of recognizing only one heir; then, by a quite contrary application of the principle of equality, the admission of all the children to a share in their father's estate, and, very recently also among us, the definitive abolition of the right of primogeniture. But what is there in common between these rude outlines of instinctive organization and the true social science? How could these men, who never had the faintest idea of statistics, valuation, or political economy, furnish us with principles of legislation? "The law," says a modern writer on jurisprudence, "is the expression of a social want, the declaration of a fact: the legislator does not make it, he declares it. 'This definition is not exact. The law is a method by which social wants must be satisfied; the people do not vote it, the legislator does not express it: the savant discovers and formulates it." But in fact, the law, according to M. Ch. Comte, who has devoted half a volume to its definition, was in the beginning only the EXPRESSION OF A WANT, and the indication of the means of supplying it; and up to this time it has been nothing else. The legists--with mechanical fidelity, full of obstinacy, enemies of philosophy, buried in literalities--have always mistaken for the last word of science that which was only the inconsiderate aspiration of men who, to be sure, were well-meaning, but wanting in foresight.