“When the messenger won't tell you what the hell the message is, my trigger finger gets twitchy. Dismissed.”

“I don't care how much you eat, Ender, self-cannibalism won't get you out of this school.”

“I have begged and she hasn't answered. The whales are swimming deep inside me and she doesn't help. I need help. All the monsters in the world are inside me instead of outside me. I've been tricked and trapped and they are inside my walls not outside my walls inside with me and she won't help me. When I stop thinking about a muscle it shakes. When I stop thinking about a fear it leaps at me. I'm drowning but the lake keeps getting deeper and deeper and deeper and I don't know how to get out the walls go up forever and I can't climb over and I can't break through and she won't talk to me.”

“There's always moral instruction whether the writer inserts it deliberately or not. The least effective moral instruction in fiction is that which is consciously inserted. Partly because it won't reflect the storyteller's true beliefs, it will only reflect what he BELIEVES he believes, or what he thinks he should believe or what he's been persuaded of. But when you write without deliberately expressing moral teachings, the morals that show up are the ones you actually live by. The beliefs that you don't even think to question, that you don't even notice-- those will show up. And that tells much more truth about what you believe than your deliberate moral machinations.”

“If you give orders and explain nothing, you might get obedience, but you'll get no creativity. If you tell them your purpose, then when your original plan is shown to be faulty, they'll find another way to achieve your goal. Explaining to your men doesn't weaken their respect for you, it proves your respect for them.”

“Ender understood more than she said. Manipulation of gravity was one thing; deception by the officers was another; but the most important message was this: the adults are the enemy, not the other armies. They do not tell us the truth.”

“Since when do you have to tell the enemy when he has won”