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FORBES: Education Unleashed: Now It's All Up To You

He has traveled extensively throughout the world giving lectures and seminars for private and government organizations, including Beijing Academy of Social Science, Nagoya University, Tokyo Science University, Keimung University, University of Adelaide, Saint Gallen University, Duisburg University, University of Edinburgh, and Athens University of Economics and Business.

FORBES: Should You Ride Herbalife's Big Rebound?

Since then, annual lectures at the centre have been given by world figures including former president of South Africa Nelson Mandela, former United Nations secretary-general Kofi Annan and Sonia Gandhi, leader of India's Congress Party.

BBC: Prince Charles gives speech on Islam in Oxford

She began to fill her lectures with tales of her out-of-the body experiences, including travelling through space at the speed of light.

ECONOMIST: Obituary