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:

(1909-1943) French philosopher, mystic, and political activist. Opposite contemporaries, became more religious and inclined towards mysticism with age. Writings are compiled in "Gravity and Grace".
Peter Unger
B. F. Skinner
Baruch Spinoza
Simone Weil