there's only one way to have it twice in this sad life, and it's not applicable to my English-speaking friends and TDT, alas. I am talking about first reading a book in your native language (provided the translation is very good and you don't know the original language yet), then in the original (provided you've learned it very well by then). I've experienced this outstanding delight - with tons of books I had known almost by heart since childhood (like Jane Eyre, or Dickens' novels, or Chesterton's stories, etc) - many times since I learned English. It's a crazy feeling: the book is the same - but not the same; you know it by heart - but you read it for the first time... again.