The 'Gettier Problem' has shaped most of the fundamental debates in epistemology for more than fifty years. Before Edmund Gettier published his famous 1963 paper (reprinted in this volume), it was generally presumed that knowledge was equivalent to true belief supported by adequate evidence. Gettier presented a powerful challenge to that presumption. These led to the development and refinement of many prominent epistemological theories: internalism, externalism, evidentialism, reliabilism, and virtue epistemology. The debate about the appropriate use of intuition as providing evidence in all...

The 'Gettier Problem' has shaped most of the fundamental debates in epistemology for more than fifty years. Before Edmund Gettier published his famous 1963 paper (reprinted in this volume), it was generally presumed that knowledge was equivalent to true belief supported by adequate evidence. Gettier presented a powerful challenge to that presumption. These led to the development and refinement of many prominent epistemological theories: internalism, externalism, evidentialism, reliabilism, and virtue epistemology. The debate about the appropriate use of intuition as providing evidence in all...