In the dispatches which now passed, comedy was mingled with tragedy. Very unctuous was the expression by His Holiness of his apprehensions regarding "dangers to the salvation" and of his "fears for the souls" of the Venetian Senators, if they persisted in asserting their own control of their own state. Hardly less touching were the fears expressed by the good Oratorian, Cardinal Baronius, that "a judgment might be brought upon the Republic" if it declined to let the Vatican have its way. But these expressions were not likely to prevail with men who had dealt with Machiavelli.

Uncompromising as ever, Father Paul continued to write letters and publish treatises which clenched more and more firmly into the mind of Venice and of Europe the political doctrine of which he was the apostle,—the doctrine that the State is rightfully independent of the Church,—and throughout the Christian world he was recognized as victor.

Nothing could exceed the bitterness of the attacks upon him, though some of them, at this day, provoke a smile. While efforts were made to discredit him among scholars by spurious writings or by interpolations in genuine writings, efforts equally ingenious were made to arouse popular hostility. One of these was a painting which represented him writhing amid the flames of hell, with a legend stating, as a reason for his punishment, that he had opposed the Holy Father.

Now it was indeed, in the midst of ferocious attacks upon his reputation and cunning attempts upon his life, that he entered a new and most effective period of activity. For years, as the adviser of Venice, he had studied, both as a historian and as a statesman, the greatest questions which concerned his country, and especially those which related to the persistent efforts of the Vatican to encroach upon Venetian self-government. The results of these studies he had embodied in reports which had shaped the course of the Republic; and now, his learning and powers of thought being brought to bear upon the policy of Europe in general, as affected by similar papal encroachments, he began publishing a series of treatises, which at once attracted general attention.[1]

[1] For the extent to which these attacks were carried, see the large number in the Sarpi collection at the Cornell University Library, especially volume ix.

First of these, in 1608, came his work on the Interdict. Clearly and concisely it revealed the nature of the recent struggle, the baselessness of the Vatican claims, and the solidarity of interest between Venice and all other European states regarding the question therein settled. This work of his as a historian clenched his work as a statesman; from that day forward no nation has even been seriously threatened with an interdict.

Subsidiary works followed rapidly from his pen, strengthening the civil power against the clerical; but in 1610 came a treatise, which marked an epoch,—his History of Ecclesiastical Benefices.[2] In this he dealt with a problem which had become very serious, not only in Venice, but in every European state, showed the process by which vast treasures had been taken from the control of the civil power and heaped up for ecclesiastical pomp and intrigue, pointed out special wrongs done by the system to the Church as well as the State, and advocated a reform which should restore this wealth to better uses. His arguments spread widely and sank deep, not only in Italy, but throughout Europe, and the nineteenth century has seen them applied effectively in every European country within the Roman obedience.

[2] The old English translation of this book, published in 1736 at Westminster, is by no means a very rare book, and it affords the general reader perhaps the most accessible means of understanding Fra Paolo's simplicity, thoroughness, and vigor.

In 1611 he published his work on the Inquisition at Venice, presenting historical arguments against the uses which ecclesiasticism, under papal guidance, had made of that tribunal. These arguments spread far, and developed throughout Europe those views of the Inquisition which finally led to its destruction. Minor treatises followed, dealing with state questions arising between the Vatican and Venice, each treatise—thoroughly well reasoned and convincing—having a strong effect on the discussion of similar public questions in every other European nation.

In 1613 came two books of a high order, each marking an epoch. The first of these was upon the Right of Sanctuary, and in it Sarpi led the way, which all modern states have followed, out of the old, vicious system of sanctioning crime by sheltering criminals. The cogency of his argument and the value of its application gained for him an especial tribute by the best authority on such questions whom Europe had seen,—Hugo Grotius.