Page 624 - Enders_Game_Full_Book

Novinha herself. The family was intensely loyal, but they were also strong-willed and opinionated and there wasn't a one of them who didn't trust his own judgment above anyone else's. Grego or Quara, either one of them, might well decide that telling somebody else was in the best interests of Lusitania or humanity or science, and there would go the rule of secrecy.
Just the way the rule of noninterference with the piggies had been broken before Ender ever got here.
How nice, thought Ender. One more possible source of disaster that is completely out of my power to control.
Leaving the lab, Ender wished, as he had many times before, that Valentine were here. She was the one who was good at sorting out ethical dilemmas. She'd be here soon-- but soon enough? Ender understood and mostly agreed with the viewpoints put forward by Quara and Grego both. What stung most was the need for such secrecy that Ender couldn't even speak to the pequeninos, not even Human himself, about a decision that would affect them as much as it would affect any colonist from Earth. And yet Novinha was right. To bring the matter out into the open now, before they even knew what was possible-- that would lead to confusion at best, anarchy and bloodshed at worst. The pequeninos were peaceful now-- but the species' history was bloody with war.
As Ender emerged from the gate, heading back toward the experimental fields, he saw Quara standing beside the fathertree Human, sticks in her hand, engaged in conversation. She hadn't actually beat on his trunk, or Ender would have heard it. So she must want privacy. That was all right. Ender would take a longer way around, so he wouldn't come close enough to overhear.
But when she saw Ender looking her way, Quara immediately ended her conversation with Human and took off at a brisk walk down the path toward the gate Of course this led her right by Ender.
"Telling secrets?" asked Ender. He had meant his remark as mere banter. Only when the words came out of his mouth and Quara got such a furtive look on her face did Ender realize exactly what secret it might have been that Quara had been telling. And her words confirmed his suspicion.
"Mother's idea of fairness isn't always mine," said Quara. "Neither is yours, for that matter."
He had known she might do this, but it never occurred to him she would do it so quickly after promising not to. "But is fairness always the most important consideration?" asked Ender.
"It is to me," said Quara.
She tried to turn away and go on through the gate, but Ender caught her arm. "Let go of me."
"Telling Human is one thing," said Ender. "He's very wise. But don't tell anybody else. Some of the pequeninos, some of the males, they can be pretty aggressive if they think they have reason."