Wolfgang,

Great question. I to have wondered just how many success gurus have done anything other than repackaged the principles of the likes of "Think and Grow Rich". Seems everyone has an angle.

I recently learned about Paul J. Meyer who is a legend in the motivation/success arena. But before he became a guru he walked the walk and talked the talk of applying success principals to actual business success. He has very successfully built over 40 extremely successful businesses worldwide which had nothing to do with selling success materials. These are real companies. It was after all this success that he put his experiences into a success/motivation business.

Mitch