In 1785 he took an extensive tour across the Alps and while at Kricov on the Dou, he wrote his letters on Usury. These were printed in London, which were now welcomed by the people largely on account of his reputation in France as a philosopher of popular government. In the meantime, Paley had printed a treatise on the Principle of applying utility to morals and legislation. He determined to print his views in French and address them to that people then struggling for liberal government.
He revised his sheets on his favorite penal Code and published them under the title of "An Introduction to the Principles of Morals and Legislation." The Principles enunciated in this treatise attracted the attention of the liberals in France, as well as England and America. Mirabeau and other French publishers spread his reputation far and wide.
Meanwhile, Bentham with the idea of aiding the deliberations of the States General of France, and encouraged by the liberals on both continents, and especially such men as Franklin, Jefferson and others, printed a "Draft of a Code for the organization of a Judicial Establishment in France," for which services the National Assembly conferred on him the Citizenship of France by a decree, August 23, 1792, in which his name was included with those of Priestly, Paine, Wilberforce, Clarkson, Mackintosh, Anacharsis, Clootz, Washington, Klopstock, Kosiosco, and several others.
In the meantime, in his travels, he conceived an extensive plan of Prison reform which he strenuously urged the Crown Officers and the English Parliament to adopt. After several years of strenuous labors and the expenditure of a large part of the patrimony left him by his father, the enterprise was thwarted by the refusal of the King to concur with Parliament in the enterprise. This scheme is fully set forth in the histories of the reign of George III. But to avoid persecution under the drastic penal Codes of England, Bentham boasted that he was a man of no party but a man of all countries and a fraternal unit of the human race, he had come to occupy at home the position of a party chief.
He espoused with characteristic zeal and enthusiasm the ideas of the radicals, who, in spite of themselves, were ranked as a political party. He went, indeed, the whole length, not merely republicanism, but on many points of ancient democracy including Universal Suffrage and the Emancipation of all Colonies.
No matter how adroitly the Contention was managed, the Imperialists insisted that it was merely resurrecting the historic struggle of the days of Cromwell and his "bare bones." The Church establishment by way of the Lords and Bishops and Bishop Lords was the real foundation of the Crown rule in all its ramifications. This superstructure was protected by all forms of penal laws against "lease" Majesty and even the appearance of Church Creed heresy. The Radicals always confronted by Crown detectives were compelled to be very wary in their attacks upon this that they called imperial idolatry and were compelled to move by indirect and flank attacks.
The upheaval by Martin Luther in the reign of Henry VIII at the Council of Trent and others over the Divine authenticity of the Athanasian Creed never abated among the humanitarians of England or France. But in the presence of criminal inquisitions too barbarous to mention, the Radicals were handicapped and were compelled to work strategically and by pits and mines beneath the superstructure of Church imperialism. The Church structure as established in Europe is by common consent based upon the hypothesis of Divinity in the life, works, and dogmas of one Saul of Tarsus, or as denominated Paul, or the canonized St. Paul. The substantial Creed might well be denominated Paulism. Hence the legendary Paul has been one of the points of attack by the rationalists of the centuries.
While many of the contemporaries of Bentham both in England, America and the Continent denied the verity of the whole Mosaic cosmogony and historiology, yet Bentham seemed to ignore this task as superserviceable and unimportant. He and his school of Radicals were devoted to the life works and teachings of Jesus. Jesus was the idol of his school and he heartily espoused the task of eliminating Paul as the nemesis of Jesus and his Apostles, and a character invented and staged by imperialists to subordinate the toiling classes to the production of resources to subserve their personal luxuries.
Bentham began writing a philosophic analysis of the Church's pretensions concerning the divine agency of Paul. After several years of examination and study, and while he was writing his famous treatise entitled "The Rational of Judicial Evidence" afterwards collected and published by Mill, he finished the manuscript criticisms of Paul and entitled them "Not Paul but Jesus."
For fear of prosecution for direct heresy or denunciation of the Creed of the Church, he evaded the use of his own name as writer of the Criticism and used the name of Conyers Middleton, a Cambridge Divine, who by his writings had created a great deal of disturbance. He had been convicted twice for heresy. He had been dead fifty years when Bentham introduced him in the first lines in the Introduction to his Criticisms herein published (See Introduction). Bentham, no doubt, intended to evade prosecution, as it will be seen that his name does not appear in the book, and yet at the same time used the name most obnoxious to the Church in all its history.