- male, deceased (1519)
- Leonardo di ser Piero da Vinci was an Italian polymath: scientist, mathematician, engineer, inventor, anatomist, painter, sculptor, architect,...
- male, deceased (2000)
- Frederick Irving Herzberg (1923 - 2000) was a noted psychologist who became one of the most influential names in business management. He is most...
- male, 95 years old
- Jack LaLanne is an American fitness, exercise and nutritional expert, celebrity, lecturer, and motivational speaker. LaLanne has been referred to...
- male
- William Glasser, M.D. is an American psychiatrist born in Cleveland, Ohio in 1925, and developer of Reality Therapy and Choice Theory. His ideas,...
- male, deceased (1998)
- David Clarence McClelland was an American behavioral psychologist, social psychologist, and an advocate of quantitative history. McClelland earned...
- male
- Robert Kegan is a developmental psychologist and the author of numerous books, including his most well-known work "The Evolving Self" (1982). In...
- male, 77 years old
- Professor Vroom is an authority on the psychological analysis of behavior in organizations, particularly on leadership and decision making. His...
- male, 43 years old
- Roger Anthony Black MBE (born 31 March 1966) is a former Olympic athlete and now works as a television presenter and motivational speaker. Born in...
- male, 47 years old
- Greig Nori, producer and musician from Sault Ste. Marie, Ontario, Canada, is well known as the former frontman, lead vocalist and guitarist of the...
- male
- William McDougall (June 22, 1871 in Chadderton, Oldham, England - November 28, 1938 Durham, U.S.A.) was an early twentieth century psychologist who...
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