It has been found that certain political institutions and certain juridical institutions and processes are necessary. They are only so many devices shown by experience as well as by reason to be indispensable to the just protection of the rights that are essential. The fundamental law divides, therefore, into two branches-the principles that define human rights, and the machinery established for their security. Upon this foundation of constitutional principles is reared that other portion of the general structure of the common law which I have referred to as the law that is subject to change. It is deduced from these principles by their gradual application to the various relations of the individual to his fellows and to the community.
New relations spring up, new regulations are found necessary, fresh remedies have to be sought for.
To meet these requirements the law constantly advances, and becomes perfectly adequate. All law that is worth anything comes by growth, not by arbitrary creation. It arises out of an increasing and evervarying necessity. Its movement is constant, sometimes in the wrong direction, it is true, but in the long run generally in the right direction. When law ceases to grow, society ceases to advance.