Social utilitarians would say, weigh the several interests in terms of the end of law. But have we any given to us absolutely? Is the end of law anything less than to do whatever may be achieved thereby to satisfy human desires? Are the limits any other than those imposed by the tools with which we work, whereby we may lose more than we gain, if we attempt to apply them in certain situations? If so, there is always a possibility of improved tools. The Greek philosopher who said that the only possible subjects of lawsuit were "insult, injury and homicide," was as dogmatic as Herbert Spencer, who conceived of sanitary laws and housing laws in our large cities as quite outside the domain of the legal order. Better legal machinery extends the field of legal effectiveness as better machinery has extended the field of industrial effectiveness. I do not mean that the law should interfere as of course in every human relation and in every situation where some one chances to think a social want may be satisfied thereby. Experience has shown abundantly how futile legal machinery may be in its attempts to secure certain kinds of interests. What I do say is, that if in any field of human conduct or in any human relation the law, with such machinery as it has, may satisfy a social want without a disproportionate sacrifice of other claims, there is no eternal limitation inherent in the nature of things, there are no bounds imposed at creation, to stand in the way of its doing so. Let us apply some of the other theories which are now current. The Neo-Hegelians say: Try the claims in terms of civilization, in terms of the development of human powers to the most of which they are capable--the most complete human mastery of nature, both human nature and external nature. The Neo-Kantians say: Try them in terms of a community of free-willing men as the social ideal. Duguit says: Try them in terms of social interdependence and social function. Do they promote or do they impede social interdependence through similarity of interest and division of labor? In these formulas do we really get away from the problem of a balance compatible with maintaining all the interests, with responding to all the wants and claims, which are involved in civilized social existence?