The achievements of the ancient Indians in the field of philosophy are but very imperfectly known to the world at large, and it is unfortunate that the condition is no better even in India. There is a small body of Hindu scholars and ascetics living a retired life in solitude, who are well acquainted with the subject, but they do not know English and are not used to modern ways of thinking, and the idea that they ought to write books in vernaculars in order to popularize the subject does not appeal to them