Bolingbroke received a pardon in 1723, and returned to England, crossing Atterbury, who had just been convicted of treasonable practices. In 1725 Bolingbroke settled at Dawley, near Uxbridge, and for the next ten years he was alternately amusing himself in playing the retired philosopher, and endeavouring, with more serious purpose, to animate the opposition to Walpole. Pope, who was his frequent guest, sympathized with his schemes, and was completely dazzled by his eminence. He spoke of him with bated breath, as a being almost superior to humanity. "It looks," said Pope once, "as if that great man had been placed here by mistake. When the comet appeared a month or two ago," he added, "I sometimes fancied that it might be come to carry him home, as a coach comes to one's door for other visitors." Of all the graceful compliments in Pope's poetry, none are more ardent or more obviously sincere than those addressed to this "guide, philosopher, and friend." He delighted to bask in the sunshine of the great man's presence. Writing to Swift in 1728, he (Pope) says that he is holding the pen "for my Lord Bolingbroke," who is reading your letter between two haycocks, with his attention occasionally distracted by a threatening shower. Bolingbroke is acting the temperate recluse, having nothing for dinner but mutton-broth, beans and bacon, and a barndoor fowl. Whilst his lordship is running after a cart, Pope snatches a moment to tell how the day before this noble farmer had engaged a painter for 200_l._ to give the correct agricultural air to his country hall by ornamenting it with trophies of spades, rakes, and prongs. Pope saw that the zeal for retirement was not free from affectation, but he sat at the teacher's feet with profound belief in the value of the lessons which flowed from his lips. The connexion was to bear remarkable fruit. Under the direction of Bolingbroke, Pope resolved to compose a great philosophical poem. "Does Pope talk to you," says Bolingbroke to Swift in 1731, "of the noble work which, at my instigation, he has begun in such a manner that he must be convinced by this time I judged better of his talents than he did?" And Bolingbroke proceeds to describe the Essay on Man, of which it seems that three (out of four) epistles were now finished. The first of these epistles appeared in 1733. Pope, being apparently nervous on his first appearance as a philosopher, withheld his name. The other parts followed in the course of 1733 and 1734, and the authorship was soon avowed. The Essay on Man is Pope's most ambitious performance, and the one by which he was best known beyond his own country. It has been frequently translated, it was imitated both in France and Germany, and provoked a controversy, not like others in Pope's history of the purely personal kind. The Essay on Man professes to be a theodicy. Pope, with an echo of the Miltonic phrase, proposes to Vindicate the ways of God to man.