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:

(370-415) Hellenistic Neoplatonist philosopher and astronomer who lived in Alexandria. Prominent thinker of the Neoplatonic school. Murdered by a mob of Christians becoming a "martyr for philosophy".
René Descartes
Arthur Schopenhauer
Hypatia of Alexandria
Ludwig Wittgenstein