With a new foreword by Dermot Moran 'the work here presented seeks to found a new science though, indeed, the whole course of philosophical development since Descartes has been preparing the way for it a science covering a new field of experience, exclusively its own, that of "Transcendental Subjectivity"' Edmund Husserl from the author's preface to the English Edition Widely regarded as the father of phenomenology, Edmund Husserl's Ideasputs forth his revolutionary argument for phenomenology as the foundation of all philosophy and for experience as the source of all knowledge. In this seminal four part work Husserl brilliantly explores phenomenology as "the science of the essence of consciousness" and psychology as "the science of the empirical facts". Husserl's work ignited a heated debate regarding the nature of consciousness and experience that has endured throughout the 20thcentury and continues in the present day. His work has heavily influenced some of the greatest contemporary thinkers of all time including Heidegger, Sartre, Levinas, Merleau-Ponty and Derrida, and has dramatically altered the course of Western Philosophy.