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:

(460 BC - 370 BC) Ancient Greek philosopher remembered for his formulation of an atomic theory of the universe. None of his writings have survived; only fragments are known from his vast body of work.
Democritus
Confucius
John Milton
Gottfried Leibniz