David Kirsch Quotes
Jumping on something too fast can be a mistake. Tae Bo was once the latest and greatest craze, but where is it now?
Citations
Kirsch, David. The Ultimate New York Body Plan. McGraw-Hill, 2004.
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David Guy Kirsch is an American oncologist currently the Barbara Levine University Professor at Duke University and an Elected Fellow of the American Association for the Advancement of Science.