His retirement did not last long. In 1764, he returned to his ministry, replacing as Rector his successor at Christ Church, the Rev. Edward Winslow, who moved to Braintree, Massachusetts. Johnson also began working on another revision of his philosophy. This time Johnson wrote not a textbook but a dialogue titled "Raphael, or The Genius of the English America "(c. 1764–5), which Johnson called "a Rhapsody". It begins with the arrival of "guardian or genius of New England" of a "beautiful countenance" who tells "Arisctocles "(named after Aristocles of Messene, and who represents Johnson) to "call me "Raphael"". His son William Samuel Johnson in 1765 would represent Connecticut at the Stamp Act Congress, and the work hints at the controversies of the period; historian Joseph Ellis suggests that a disillusioned Johnson believed that "the underlying cause of the growing discontent between England and America was the breakdown of a sense of community". Parts of the work praise the British form of Parliamentary government, while others foreshadow the "Declaration of Independence", including its core principle that, “The natural obligation to virtue is founded in the necessity that God and nature lays us under to desire and pursue our happiness.” By 1767, Johnson was calling the British ministers in Parliament " a pack of Courtiers, who have no Religion at all.”