Instructions Full Game: These are multiple-choice quizzes with four possible answer choices that include all questions in a given set.     
Identify the following philosopher:

(1818-1883) German philosopher, economist, and socialist revolutionary. Lived stateless in exile in London for decades. Best-known titles are the 1848 pamphlet, "The Communist Manifesto", and the three-volume "Das Kapital" (1867).
Augustine of Hippo
John von Neumann
Alan Turing
Karl Marx