Instructions 20Q Game: These are similar to full games, but for quizzes larger than 20 questions it will randomly select 20 questions from within the set. This is a quick way to get in some studying of a topic.     
Identify the following philosopher:

(1904-1990) American psychologist, behaviorist, and social philosopher. Considered free will an illusion and human action dependent on consequences of previous actions. Professor at Harvard from 1958 to 1974.
René Descartes
B. F. Skinner
Arthur Schopenhauer
Augustine of Hippo