61.   He also holds a doctorate in Spanish and Portuguese literature from Catholic University in Washington, where he taught for four years.

62.   He also held honorary doctorates at universities in Norway, Denmark and Germany.

63.   He holds a doctorate in mechanical engineering from North Carolina State University.

64.   He holds a doctorate from Oxford University.

65.   He holds a doctorate in economics from Harvard University, near Boston.

66.   He holds a doctorate from the Sorbonne and is fluent in French.

67.   He holds a doctorate in applied chemistry from Harvard University and teaches at California Institute of Technology.

68.   He holds a doctorate in economics from the University of Chicago.

69.   He held honorary doctorates for his contribution to literature from Paris, Oxford and a dozen other leading universities.

70.   He holds a doctorate in chemistry from the University of Zurich.