In this paper, I attempt to clarify the nature and purpose of Berkeley's criticisms of Shaftesbury's and Hutcheson's ethical systems in the third chapter ofAlciphron, explaining the extent to which those criticisms rely on the truth of idealism and considering whether Berkeley or his philosophical opponents have the better of the arguments. In the end, I conclude that some of Berkeley's criticisms are based on confusion and misunderstanding, others are likely contradicted by the empirical evidence, and yet others are unconvincing. (...) At the same time, the criticisms reveal that Berkeley's metaphysical and ethical views are, perhaps surprisingly, significantly intertwined. (shrink)