... a major contribution to Heidegger scholarship..." -Journal of the History of Behavioral SciencesVan Buren's portrayal of these formative years is striking and vital to all future Heidegger scholarship." -Christian CenturyVan Buren presents a clear and cogent argument for the theory that Martin Heidegger's mature thought, epitomized in Being and Time, actually was a return to his youthful theory and concerns.... Van Buren's ability to present a rounded discussion while using Heidegger's own technical vocabulary is highly commendable." -Library Journal... here at last is a work on the philosopher that is of fundamental philosophical-historical import. Van Buren's book is both interesting and well written... " -Choice... a readable, interesting, and first-rate book." -John D. CaputoA startling new reading of Martin Heidegger's early thought leading up to Being and Time (1927) and its subsequent development in his later writings.