This volume contains the first printed edition with notes and commentaries of the section on Martin Heidegger's ‘Sein und Zeit’ from Charles Malik's 1937 philosophy doctoral thesis at Harvard University. Malik's pioneering text stands as one of the earliest Anglophone analytic, phenomenological, and hermeneutic engagements with Heidegger's first major work. Its historical significance is furthermore accentuated in terms of being composed in a critical period during the development of Heidegger's thought and praxis at the time when Malik studied under him in Freiburg. These aspects are moreover enriched by Malik's own interpretation of ‘Sein und Zeit’ through theological perspectives, which also reflect the depths of his commitments to manifold civilizational confluences that underpinned his existential moods and cultural values as a modern Lebanese Christian thinker.