The manuals on Indian philosophy, very rare until about thirty years ago (you still had to rely on Deussen and Max Mueller at that time), have multiplied since then. The years between 1922 and 1925 saw the publication of the first volume of Dasgupta's study as well as of Radhakrishnan's, of the shorter treatises by Masson-Oursel, by Grousset, and by Otto Strauss. Slowly it became clear that philosophy was not the monopoly of the Greeks and their successors and that, since the beginning of historical time, India in particular had handled in its own way and most worthily the notions which form the nucleus of our own speculations. It will become increasingly more difficult to set aside the role of India when a worldwide picture of the facts is to be presented.