In a bold challenge to prevailing trends, McGrew revives and reinvigorates classical foundationalism, the long-disputed notion that our empirical knowledge rests on an unshakeable bedrock of perceptual certainty. With meticulous argumentation and razor-sharp logic, he constructs a robust new foundation for empirical knowledge, one that successfully withstands the most trenchant criticisms. By engaging the provocative ideas of Kuhn and Rorty, McGrew demonstrates the enduring vitality of the analytic tradition, illuminating the very foundations of human understanding. This groundbreaking work will captivate philosophers of science, language, and mind, as well as anyone intrigued by the nature of knowledge itself.