Take a journey through Jean-Paul Sartre's trans-phenomena of consciousness, into Gilbert Ryle's Linguistic Behaviourism and on to the outer reaches of Wilfrid Sellars' Rylean ancestors and their 'Messianic Behaviourist' Jones. Phenomenology and the Ghost in the Machine begins by investigating a historical connection between Jean-Paul Sartre and Gilbert Ryle. The book exploits this connection to explore an attractive relationship between ordinary language and consciousness, thus providing plenty of chances for readers to learn Sartre's phenomenology and Ryle's linguistic analysis of the mind along the way. This work is a one way ticket to the outer reaches of the mind, arguing that language is insufficient to ground a theory of mind because it fails to capture sublinguistic layers of thought. Only a 'first person science' exploring the nature of mind, and heralded by a return to a Pre-Fregeian Psychologism, can penetrate these mysteries of thought.