Back to School

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Across
  1. 2. the pursuit of the universe's fundamental laws. (7)
  2. 5. elevating one's professional abilities. (10)
  3. 8. to fully ingest a concept or a lesson. (6)
  4. 10. a repository of the world's wisdom. (7)
  5. 12. the foundation of most Western languages. (8)
  6. 15. the conviction that one's potential is not fixed. (6,7)
  7. 16. the chronicle of human experience and civilisation. (7)
  8. 17. the inner strength to bend without breaking. (10)
Down
  1. 1. the science of elements, and the bonds between them. (9)
  2. 3. the seed of a horse chestnut tree, often used in a traditional playground game. (7)
  3. 4. the opportunity to become and evolve. (4)
  4. 6. the melodic tongue of molière and monet. (6)
  5. 7. raw material for insight and knowledge. (4)
  6. 9. a line of authority, or a tool for drawing one. (5)
  7. 11. the study of nature. (7)
  8. 13. the practice of having an optimistic and constructive outlook. (10)
  9. 14. the creative expression of emotion and form. (3)