Pop(ular) Quiz

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Across
  1. 2. common method of transportation
  2. 7. Zhuang Zhou's dream
  3. 8. knows that he exists according to Ibn Sina
  4. 9. i think therefore
Down
  1. 1. award-winning documentary
  2. 3. when class begins
  3. 4. what Socrates knows
  4. 5. a matter of pure intuitive logic
  5. 6. might not rise tomorrow according to Hume