have been offered for problems otherwise insoluble. None the less, the function of the foreign system has been to advise rather than to command. It has not furnished a new method. It has given the raw material to be utilized by methods already considered—the methods of philosophy and history and sociology—–in the moulding of their products. It is only one compartment in the great reservoir of social experience and truth and wisdom from which the judges of the common law must draw their inspiration and their knowledge.
In thus recognizing, as I do, that the power to declare the law carries with it the power, and within limits the duty, to make law when none exists, I do not mean to range myself with the jurists who seem to hold that in reality there is no law except the decisions of the courts. I think the truth is midway between the extremes that are represented at one end by Coke and Hale and Blackstone and at the other by such authors as Austin and Holland and Gray and Jethro Brown. The theory of the older writers
