truth should be regarded as "cold" and unsympathetic; that a wider and wider gulf should open between "ethical aspirations" and the products of scientific method applied to social phenomena; and that the point at which the cleft opens should be the doctrine of liberty. Any student of social science who accepts the anarchistic notion of liberty will find himself lost in the new forms of the mist of free-will. No such notion of liberty can be tolerated in a scientific discussion, but only that notion which, being a product of social growth, is within the field of the science itself. On every ground and at every point the domain of social science must be defended against the alleged authority of ethical dicta, which cannot be subjected to any verification whatever.
