It was likely Aristotle who was the first to discover a sense unique to humans: the sense of perceiving that one perceives. In his book, Daniel Heller-Roazen undertakes its archaeology: in 25 chapters, he traces the intricate paths of this particular sense among thinkers from ancient Greece to the 20th century and across disciplines from philosophy to psychology, literature, and medical treatises. "The Inner Sense" is an original, elegant, and far-reaching philosophical investigation into what it means to feel alive. Daniel Heller-Roazen's archaeology of a feeling sheds entirely new light on a number of essential moments in the history of philosophy and the human sciences. Even more significant for this extraordinary work is that it opens up a fascinating field of research.