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:

(1646-1716) German polymath and one of the most important natural philosophers of the Enlightenment. Refined the binary number system. One of the most prolific inventors in the field of mechanical calculators.
Gottfried Leibniz
Diogenes
Ayn Rand
John von Neumann