Psychologist in the 1950s
Steven Pinker born on September 18, 1954 is a cognitive scientist , psychologist , and a popular science author . HE is a Family Professor in the department of Psychology at Harvard University, and is known for his advocacy of evolutionary psychology and the computational theory of mind. He has published a lot of popular books about psychology "How the mind works" (1997), "Words and Rules"(2000),"The Blank Slate"(2002).