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   Query type: 
    Query was: natural
  

Here are the matching lines in their respective documents. Select one of the highlighted words in the matching lines below to jump to that point in the document.

• Title: First Class, Vol. I: Lesson 5
  Matching lines:
  • purely natural overheating of a room can give a kind of moral
  • air as something external, natural. He also feels warmth as
  • Thus warmth ceases to be a merely natural element, for we feel
  • Those are the experiences where the natural and the moral grow