Radhakrishnan studied philosophy as he received free books
India's second President Dr S Radhakrishnan, who has authored several books on philosophy, chose to study the subject after his cousin passed on his philosophy textbooks to him. Radhakrishnan's first published book was based on Rabindranath Tagore's philosophy. Radhakrishnan, whose birthday is commemorated as Teachers' Day, taught philosophy at Mysore University and Calcutta University.