Kurt Lewin

German-american psychologist.

Born September 9th, 1890 in Mogilno. [ref]

Died February 12th, 1947 at 56 years old in Newtonville (myocardial infarction). [ref]

Occupations
psychologist, university teacher
Wikipedia

A word is dead when it is said, some say. I say it just begins to live that day. Emily Dickinson