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:

(1788-1860) German philosopher. Best known for "The World as Will and Representation" (1818), wherein he characterizes the phenomenal world as the product of a blind and insatiable metaphysical will.
Hypatia of Alexandria
John von Neumann
Arthur Schopenhauer
Confucius