Instruct: Classify a review as either positive or negative.
Query: Good book

A good book. I believe this book was originally written in the late 1940's. Since then a lot of other books have come into being, books by Ernest Holmes, Joseph Murphy and U.S. Andersen which explained why there is magic in believing. For the layman, this is very good indeed.Mr Bristol, however, still has not completely shaken himself off from traditional beliefs. He advised readers not to us this power for evil purposes. This is a dubious thing. How do you define 'evil purposes' ? If, in using this power of believing, a person gets what he wants and triumphs over other people, it can be construed that he uses it for an evil purpose.The other thing that he mentioned is 'don't try to use it for betting and gambling'. If the power is available and a person uses it in gambling and betting with complete faith and singleness of purpose and succeeds, what is really wrong ? This brings him back to the traditional belief that hard work must be involved in any undertaking.