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
Positive psychology calibrated." Seligman has acknowledged in his work the point about positive illusion, and is also a critic of merely feeling good about oneself apart from reality and recognises the importance of negativity / dysphoria. Ian Sample, writing for "The Guardian", noted that, "Positive psychologists also stand accused of burying their heads in the sand and ignoring that depressed, even merely unhappy people, have real problems that need dealing with." Sample also quoted Steven Wolin, a clinical psychiatrist at George Washington University, as saying that the study of positive psychology is just a reiteration of older ways of thinking, and that