Nothing happens by a single causebut through collective causes everything is possible. This maxim(karanasamagrivada) of the Sautraintika Philosophy is true in theproduction of this book. There have been many causes and conditionswhich should be pinpointed, in analyzing the writing of his book. I had my first encounter with the Buddha’s dialogues throughB.R. Ambedkar’s book, The Buddha and his Dhamma (which I finishedin one day). The impact of the lucid, precise, meaningfullogical,and psychological definitions of the Buddha was so greatthat my mind trained in the antagonistic Brahmanic Philosophy andlogic surrendered to Buddha’s wisdom. I express my deepestgratitude to Ambedkar for inspiring Sutra studies in India, andhave analyzed his views that ‘everything is not Dukkha by nature'(anti pessimism 14.18) in the Sautrantika Analytical ethnic. Thedisappearance of the Sautrantika works and tactful inclusion ofalmost all Sautrantika Acaryas into Vijnanavada (idealism) make mesuspect foul play against these critical philosophers. The book is divided in five sections-(i) foundation (ii)Epistomology (iii) Ontology (iv) Axiology (v) ComparativePhilosophy. About the Author Dr. Amar Singh is usually widely read in Indian philosophy,particularly, Buddhist philosophy. He is well known for hiscritical research. He is the position holder in M.A. (Philosophy)from Agra University (1960). First Ph.D. (1996) from VidyalamkaraUniversity of Sri Lanka and second Ph.d. (1980) from TorontoUniversity, Canada. He worked under Prof. Rahula Sankrtayana andA.K. Warder respectively. He also holds two oriental degrees,Sahitya Ratna and S. Sastri (first position). He was awarded A+ inSanskrit Linguistics, Abhidharma and Pramana and received manyfinancial awards from Toronto University. He has held many important assign ments as Asstt. Professor,Vidyalamkara University, Sri Lanka, Co-Director, Institute ofIndology, New Delhi, Graduate Assistant, Toronto University,Canada. He has contributed many