judicial compensation guarantee

The primary purpose of the prohibition against diminution was not to benefit the judges, but, like the clause in respect of tenure, to attract good and competent men to the bench and to promote that independence of action and judgment which is essential to the maintenance of the guaranties, limitations, and pervading principles of the Constitution and to the administration of justice without respect to persons and with equal concern for the poor and the rich. Such being its purpose, it is to be construed, not as a private grant, but as a limitation imposed in the public interest; in other words, not restrictively, but in accord with its spirit and the principle on which it proceeds.