I think not.His words have been appropriated by more than one maniac and twisted to fit their diabolical schemes.Besides,there have been countless teachers throughout history.It is the individual who is learning,the seeker,if you will,who must interpret and put to use anything he or she is taught.Don't tell me the Bible is the last word on spirituality if you haven't even bothered to read other literature from other paths such as the Dhammapada,Upanishads,Bhagvad Gita etc.That's like telling me Chocolate is the only worthwhile flavor of ice cream without ever tasting other flavors!