~ Principles of Politeness, and of Knowing the World. By the late Lord Chesterfield. Methodified and digested under distinct Heads, With Additions, By the Rev. Dr. John Trusler: Containing Every Instruction necessary to complete the GENTLEMAN and MAN OF FASHION; to teach him a Knowledge of Life, and make him well received in all Companies, 1786
via Internet Archive
Lord Chesterfield was a proper gent, wasn’t he?