Leonardo da Vinci

Leonardo da Vinci

male, deceased (1519)
Leonardo di ser Piero da Vinci was an Italian polymath: scientist, mathematician, engineer, inventor, anatomist, painter, sculptor, architect,...
Frederick Herzberg

Frederick Herzberg

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...
Jack Lalanne

Jack Lalanne

male, 95 years old
Jack LaLanne is an American fitness, exercise and nutritional expert, celebrity, lecturer, and motivational speaker. LaLanne has been referred to...
William Glasser

William Glasser

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,...
David McClelland

David McClelland

male, deceased (1998)
David Clarence McClelland was an American behavioral psychologist, social psychologist, and an advocate of quantitative history. McClelland earned...
Robert Kegan

Robert Kegan

male
Robert Kegan is a developmental psychologist and the author of numerous books, including his most well-known work "The Evolving Self" (1982). In...
Victor Vroom

Victor Vroom

male, 77 years old
Professor Vroom is an authority on the psychological analysis of behavior in organizations, particularly on leadership and decision making. His...
Roger Black

Roger Black

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...
Greig Nori

Greig Nori

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...

William McDougall

male
William McDougall (June 22, 1871 in Chadderton, Oldham, England - November 28, 1938 Durham, U.S.A.) was an early twentieth century psychologist who...