Synopsis Some very fundamental issues of science and philosophy have been dealt with in this book. Knowledge, consciousness, freedom, action, being and becoming are among those issues. Though analytic tools have often been used to explicate the said concepts, the approach of this book does not aim to be analytic in its narrow sense. In most of the essays of the book Chattopadhyaya has liberally drawn on science and philosophy, Indian and modern traditions, classical and contemporary writers. Phenomenology and consciousness studies have received special attention of the author in this work. The author has not allowed some such received points of view as realism and idealism, transcendentalism and empiricism marked by their attending variety and indefiniteness, to restrict his was of exploration and explication of the basic concepts of philosophy of science and their manysidedness. Because of the wide range of the themes of the book and their transdisciplinary character it will be of interest not only to professional philosophers and philosophers of science but also to social scientists and general readers.