In Justice Herbert Spencer revisits the Law of Equal Freedom which first appeared in his work Social Statics and forms the keystone of his theory on social morality.

This volume presents a series of lectures on Spencer: his earlier work, preparation for the Synthetic Philosophy, the Spencerian sociology; Spencer's ethical system; and the religious aspects of Spencerian philosophy. Also included is a biographical sketch of Spencer.

Spencer's account of his sociologial doctrines. Its publication marked Spencer as a popular philosopher of the Victorian age. It was a influential in terms of the impetus it gave to the academic pursuit of the new science of sociology.

The themes of this volume are the politics of nonconformist radicalism, the universality of natural law and the existence of a moral sense. It also includes Spencer's vision of a pure democracy, in which the vote was available to all, regardless of age, sex or property or qualification.