Instruct: Classify an Amazon review into positive or negative sentiment.
Query: A true Martyr.

This book is a fascinating, yet tragic tale, of a man who not only invented a microscope that was ahead of it's time, but 'cures' for cancer and most other diseases, using a machine that used different frequencies. This man, Royal Rife, had to constantly battle with the corrupt Medical Cartel that is only concerned about the almighty dollar. It makes one sick to think about how much good his work could have been for world, except it was destroyed and is still being suppressed. I am glad that Barry Lynes wrote this book though, and hope that it will continue to spark peoples desires to carry on Rife's work.On the side, I would like to mention there is now more and more ongoing tests with RIFE type machines. And that quite advanced RIFE type machines can be bought nowadays. They are around $5000.00 US. Make sure they have a plasma tube and not just the pads if you want a genuine and more effective RIFE type machine.