JOHN CALVIN 143 in effigy ; and the reformer's authority from this date was confirmed into an absolute supremacy. During the long struggle with the Libertines occurred also Calvin's controversies with Sebastian Castellio, Jerome Bolsec, and above all, Michael Servetus. After the execution of Servetus, and the expulsion of the Libertines two years later, Calvin's power in Geneva was firmly established, and he used it vigorously and beneficently for the defence of Protestantism throughout Europe. By the mediation of Beza he made his influence felt in France in the great struggle that was there going on between the hierarchical party, with the Guises at its head, and the Rrotestants, led by Conde and Coligny. In 1561 his energies began to fail. He had been long suffering from bad health, though his strength of will and buoyancy of intellect sustained him ; but his health grew very much worse, and although he survived for more than two years, he never regained any vigor. He died on May 27, 1564. Very different estimates have been formed of Calvin's character. None, however, can dispute his intellectual greatness or the powerful services which he rendered to the cause of Protestantism. Stern in spirit and unyielding in will, he is never selfish or petty in his motives. Nowhere amiable, he is everywhere strong. Arbitrary and cruel when it suits him, he is yet heroic in his aims, and beneficent in the scope of his ambition. His moral purpose is always clear and definite : to live a life of duty, to shape circumstances to such divine ends as he apprehended, and in whatever sphere he might be placed, to work out the glory of God. He rendered a double service to Protestantism, which, apart from anything else, would have made his name illustrious : he systematized its doctrine, and he organized its ecclesiastical discipline. He was at once the great theologian of the Reformation, and the founder of a new church polity which did more than all other influences together to consolidate the scattered forces of the Reformation and give them an enduring strength. As a religious teacher, as a social legis- lator, and as a writer, especially of the French language, whose modern prose style was then in process of formation, his fame is second to none in his age, and must always conspicuously adorn the history of civilization. His famous " Institutio" entitles Calvin to the foremost place among the dog- matic theologians of the Reformed Church. This masterpiece of luminous argu- ment presents a complete system of Christian faith, based on the Protestant principle that the Scriptures are the source of Christian truth. " Two things there are," says Hooker, in the preface to the "Ecclesiastical Polity," "which have deservedly procured him honor throughout the world the one, his exceed- ing pains in composing the ' Institutions of the Christian Religion ; ' the other, his no less industrious travails for exposition of Holy Scripture." His Commen- taries embrace the greater part of the Old Testament and the whole of the New, except the Revelation, and place him in the front rank of expositors of Scripture.