Speaker for the Dead by Orson Scott Card

from their bodies contained some of their life and strength. What if the piggies thought we were doing magic against them?"
      "Don't you know their language? I thought some of them spoke Stark, too." She made no effort to hide her disdain. "Can't you explain what the samples are for?"
      "You're right," he said quietly. "But if we explained what we'd use the tissue samples for, we might accidently teach them the concepts of biological science a thousand years before they would naturally have reached that point. That's why the law forbids us to explain things like that."
      Finally, Novinha was abashed. "I didn't realize how tightly you were bound by the doctrine of minimal intervention."
      Pipo was glad to hear her retreat from her arrogance, but if anything, her humility was worse. The child was so isolated from human contact that she spoke like an excessively formal science book. Pipo wondered if it was already too late to teach her how to be a human being.
      It wasn't. Once she realized that they were excellent at their science, and she knew almost nothing of it, she dropped her aggressive stance and went almost to the opposite extreme. For weeks she spoke to Pipo and Libo only rarely. Instead she studied their reports, trying to grasp the purpose behind what they were doing. Now and then she had a question, and asked; they answered politely and thoroughly.
      Politeness gradually gave way to familiarity. Pipo and Libo began to converse openly in front of her, airing their speculations about why the piggies had developed some of their strange behaviors, what meaning lay behind some of their odd statements, why they remained so maddeningly impenetrable. And since the study of piggies was a very new branch of science, it didn't take long for Novinha to be expert enough, even at second hand, to offer some hypotheses. "After all," said Pipo, encouraging her, "we're all blind together."
      Pipo had foreseen what happened next. Libo's carefully cultivated patience had made him seem cold and reserved to others of his age, when Pipo could prevail on him even to attempt to socialize; Novinha's isolation was more flamboyant but no more thorough. Now, however, their common interest in the piggies drew them close-- who else could they talk to, when no one but Pipo could even understand their conversations?
      They relaxed together, laughed themselves to tears over jokes that could not possibly amuse any other Luso. Just as the piggies seemed to name every tree in the forest, Libo playfully named all the furniture in the Zenador's Station, and periodically announced that certain items were in a bad mood and shouldn't be disturbed. "Don't sit on Chair! It's her time of the month again." They had never seen a piggy female, and the males always seemed to refer to them with almost religious reverence; Novinha wrote a series of mock reports on an imaginary piggy woman called Reverend Mother, who was hilariously bitchy and demanding.
      It was not all laughter. There were problems, worries, and once a time of real fear that they might have done exactly what the Starways Congress had tried so hard to preventmaking radical changes in piggy society. It began with Rooter, of course. Rooter, who persisted in asking challenging, impossible questions, like, "If you have no other city of humans, how can you go to war? There's no honor for you in killing Little Ones." Pipo babbled something about how humans would never kill pequeninos, Little Ones; but he knew that this wasn't the question Rooter was really asking.
      Pipo had known for years that the piggies knew the concept of war, but for days after that Libo and Novinha argued heatedly about whether Rooter's question proved that the piggies regarded war as desirable or merely unavoidable. There were other bits of information from Rooter, some important, some not-- and many whose importance was impossible to judge. In a way, Rooter himself was proof of the wisdom of the policy that