Abstract
This essay provides some historical background for, and considers the philosophical importance of, the collection of Anne Berkeley’s letters to Adam Gordon. The primary philosophical significance of the letters is her arguments against the so-called “free thinkers.” She discusses the philosophical view and the behavior of five prominent free-thinkers: Shaftesbury, Bolingbroke, Voltaire, Rousseau, and Hume. Her discussion of Shaftesbury is particularly illuminating and can be read as a commentary on Alciphron III.13-14. Because the work of the other four were published mainly after the Bishop’s death, the letters also show Anne ’s independent lifelong interest in matters theological, philosophical, and moral.