Mihaly Csikszentmihalyi — Hungarian Psychologist born on September 29, 1934,

Mihaly Csikszentmihalyi (Hungarian: Csíkszentmihályi Mihály, pronounced ( listen); born 29 September 1934) is a Hungarian psychologist. He created the psychological concept of flow, a highly focused mental state. He is the Distinguished Professor of Psychology and Management at Claremont Graduate University. He is the former head of the department of psychology at the University of Chicago and of the department of sociology and anthropology at Lake Forest College... (wikipedia)