Things that make you go hmmmm?

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Across
  1. 2. To use common sense
  2. 3. follows steps that lead to solution
  3. 5. To think using logic and facts
  4. 6. When someone likes to thinks outside the box
  5. 7. How Socrates was executed
  6. 9. Socrates friend
Down
  1. 1. Sentence handed out
  2. 4. Paved why for Western Philosophy
  3. 7. Close friend of Socrates
  4. 8. When something has proof