This collection of readings shows how cognitive science can influence most of the primary branches of philosophy, as well as how philosophy critically examines the foundations of cognitive science. Its broad coverage extends beyond current texts that focus mainly on the impact of cognitive science on philosophy of mind and philosophy of psychology, to include materials that are relevant to five other branches of philosophy: epistemology, philosophy of science (and mathematics), metaphysics, language, and ethics. The readings are organized by philosophical fields, with selections evenly divided between philosophers and cognitive scientists. They draw on research in numerous areas of cognitive science, including cognitive psychology, developmental psychology, social psychology, psychology of reasoning and judgment, artificial intelligence, linguistics, and neuropsychology. There are timely treatments of current topics and debates such as the innate understanding of number, children's theory of mind, self-knowledge, consciousness, connectionism, and ethics and cognitive science.