Synopsis "Nothing happens by a single cause but through collective causes everything is possible."  This maxim (karanasamagrivada) of the Sautrantika Philosophy is true in the production of this book.  There have been many causes and conditions which should be pinpointed, in analyzing the writing of this book.  I had my first encounter with the Buddha's dialogues through B.R. Ambedkar's book, The Buddha and his Dhamma (which I finished in one day).  The impact of the lucid, precise, meaningful logical, and psychological definitions of the Buddha was so great that my mind trained in the antagonistic Brahmantic Philosophy and logic surrendered to Buddha's wisdom.  I express my deepest gratitude to Ambedkar for inspiring Sutra studies in India, and have analyzed his views that 'everything is not Dukkha by nature' (anti-pessimism 14.18) in the Sautrantika Analytical ethics.  The disappearance of the Sautrantika works and tactful inclusion of almost all Sautrantika Acaryas into Vijnanavada (idealism) make me suspect foul play against these critical philosophers.  The book is divided in five sections: (i) foundation (ii) Epistomology (iii) Ontology (iv) Axiology (v) Comparative Philosophy.