The Power of Positive Thinking of followers testified that Peale’s message changed their lives for the better and represented the best combination of faith and pragmatism.” This is evidenced by the popularity of Peale's book, which sold more than 5 million copies worldwide and was eventually translated into over 40 languages. In addition, Peale was close friends with American presidents Eisenhower and Nixon, both of which highly regarded his positive thinking teachings. Countless others accredited "The Power of Positive Thinking" for their success in overcoming obstacles including George Foster, of the Cincinnati Reds, Rev. Robert Schuller, founder and pastor of the Crystal Cathedral in Garden
The Power of Positive Thinking backing of religion to support his techniques. Krumm continues with a warning: "the predominant use of impersonal symbols for God is a serious and dangerous invitation to regard man as the center of reality and the Divine Reality as an impersonal power, the use and purpose of which is determined by the man who takes hold of it and employs it as he thinks best.” Edmund Fuller, book review editor of the "Episcopal Churchnews," warned against following Peale's teachings in an article titled “Pitchmen in the Pulpit” from March 1957. Fuller cautions readers not to believe Peale just because he