Free Speaker for the Dead by Orson Scott Card

Figueira Alvarez, called Pipo, as a great change in the shape of his own life. Andrew Wiggin was Speaker for the Dead in the university city of Reykjavik, renowned as the conservator of Nordic culture, perched on the steep slopes of a knifelike fjord that pierced the granite and ice of the frozen world of Trondheim right at the equator. It was spring, so the snow was in retreat, and fragile grass and flowers reached out for strength from the glistering sun. Andrew sat on the brow of a priny hill, surrounded by a dozen students who were studying the history of interstellar colonization. Andrew was only half-listening to a fiery argument over whether the utter human victory in the Bugger Wars had been a necessary prelude to human expansion. Such arguments always degenerated quickly into a vilification of the human monster Ender, who commanded the starfleet that committed the Xenocide of the Buggers. Andrew tended to let his mind wander somewhat; the subject did not exactly bore him, but he preferred not to let it engage his attention, either.
      Then the small computer implant worn like a jewel in his ear told him of the cruel death of Pipo, the xenologer on Lusitania, and instantly Andrew became alert. He interrupted his students.
      "What do you know of the piggies?" he asked.
      "They are the only hope of our redemption," said one, who took Calvin rather more seriously than Luther.
      Andrew looked at once to the student Plikt, who he knew would not be able to endure such mysticism. "They do not exist for any human purpose, not even redemption," said Plikt with withering contempt. "They are true ramen, like the buggers."
      Andrew nodded, but frowned. "You use a word that is not yet common koine."
      "It should be," said Plikt. "Everyone in Trondheim, every Nord in the Hundred Worlds should have read Demosthenes' History of Wutan in Trondheim by now."
      "We should but we haven't," sighed a student.
      "Make her stop strutting, Speaker," said another. "Plikt is the only woman I know who can strut sitting down."
      Plikt closed her eyes. "The Nordic language recognizes four orders of foreignness. The first is the otherlander, or utlãnning , the stranger that we recognize as being a human of our world, but of another city or country. The second is the framling-- Demosthenes merely drops the accent from the Nordic frãmling . This is the stranger that we recognize as human, but of another world. The third is the ramen, the stranger that we recognize as human, but of another species. The fourth is the true alien, the varelse, which includes all the animals, for with them no conversation is possible. They live, but we cannot guess what purposes or causes make them act. They might be intelligent, they might be self-aware, but we cannot know it."
      Andrew noticed that several students were annoyed. He called it to their attention. "You think you're annoyed because of Plikt's arrogance, but that isn't so. Plikt is not arrogant; she is merely precise. You are properly ashamed that you have not yet read Demosthenes' history of your own people, and so in your shame you are annoyed at Plikt because she is not guilty of your sin."
      "I thought Speakers didn't believe in sin," said a sullen boy.
      Andrew smiled. " You believe in sin, Styrka, and you do things because of that belief. So sin is real in you, and knowing you, this Speaker must believe in sin."
      Styrka refused to be defeated. "What does all this talk of utlannings and framlings and ramen and varelse have to do with Ender's Xenocide?"
      Andrew turned to Plikt. She thought for a moment. "This is relevant to the stupid argument that we were just having. Through these Nordic layers of foreignness we can see that Ender was not a true xenocide, for when he destroyed the buggers, we knew them only as varelse; it was not until years later, when the first Speaker for the Dead wrote The Hive Queen and the Hegemon, that humankind first understood that the buggers were