Notice a general tendency in philosophy: When working in one area, we feel free to presuppose positions in other areas that are (at best) highly controversial among practitioners in those areas. To take a limiting example, philosophers nearly everywhere outside epistemology presuppose that we have some knowledge of the external world. If we do have it—as I too presume we do—epistemology has delivered not one tenable account of how that can be so. (Except possibly my own; see my etc.)
William J. Lycan, Giving Dualism Its Due
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