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Surendranath Dasgupta Cassimbazar made an offer of 300 rupees a month for Dasgupta to start his library; this is now one of the best of its kind, containing many unpublished manuscripts and over 15,000 printed books. It was given by him as a gift to the Benares Hindu University on his retirement from the Calcutta University. Love of knowledge seems to have been the guiding passion of the professor's life. He never sought position or honour, though they were showered upon him in quick succession in his later days. He had a unique sincerity of purpose and expression, and the light that came from his soul impressed kindred souls.
When Lord Ronaldshay, the Governor of Bengal, came to visit Chittagong College, he had a long talk with Professor Dasgupta in his classroom, and was so much impressed by it that he expressed the desire that the first volume of the History of Indian Philosophy might be dedicated to him. Originally Dasgupta's plan was to write out the history of Indian systems of thought in one volume. Therefore he tried to condense the materials available within the compass of one book. But as he went on collecting materials from all parts of India, a huge mass of published and unpublished texts came to light, and the plan of the work enlarged more and more as he tried to utilise them. As a matter of fact, his was the first and only attempt to write out in a systematic manner a history of Indian thought directly from the original sources in Sanskrit, Pali and Prakrit. In a work of the fourteenth century A.D., the Sarva-darśana-samgraha of Mādhavācārya, we find a minor attempt to give a survey of the different philosophical schools of India. But the account given there is very brief, and the work does not give an exhaustive survey of all the different systems of philosophy. In the present series the author traced, in a historical and critical manner, the development of Indian thought in its different branches from various sources, a considerable portion of which lies in unpublished manuscripts. He spared no pains and underwent a tremendous amount of drudgery in order to unearth the sacred, buried treasures of Indian thought. He revised his original plan of writing only one volume and thought of completing the task in five consecutive volumes constituting a series. He shouldered this gigantic task all alone, with the sincerest devotion and unparalleled enthusiasm and zeal.
Dasgupta had taken the Griffith Prize in 1916 and his doctorate