Page 204 - Enders_Game_Full_Book

The old man was sitting cross-leged again, but now the apathy was gone. He was smiling. "Better, this time, boy. But slow. You will have to be better with a fleet than you are with your body or no one will be safe with you in command. Lesson learned?"
Ender nodded slowly. He ached in a hundred places.
"Good," said the old man. "Then we'll never have to have such a battle again. All the rest with the simulator. I will program your battles now, not the computer; I will devise the strategy of your enemy, and you will learn to be quick and discover what tricks the enemy has for you. Remember, boy. From now on the enemy is more clever than you. From now on the enemy is stronger than you. From now on you are always about to lose."
The old man's face grew serious again. "You will be about to lose, Ender, but you will win. You will learn to defeat the enemy. He will teach you how."
The teacher got up. "In this school, it has always been the practice for a young student to be chosen by an older student. The two become companions, and the older boy teaches the younger one everything he knows. Always they fight, always they compete, always they are together. I have chosen you."
Ender spoke as the old man walked to the door. "You're too old to be a student."
"One is never too old to be a student of the enemy. I have learned from the buggers. You will learn from me."
As the old man palmed the door open, Ender leaped into the air and kicked him in the small of the back with both feet. He hit hard enough that he rebounded onto his feet, as the old man cried out and collapsed on the floor.
The old man got up slowly, holding onto the door handle, his face contorted with pain. He seemed disabled, but Ender didn't trust him. Yet in spite of his suspicion, he was caught off guard by the old man's speed. In a moment he found himself on the floor near the opposite wall, his nose and lip bleeding where his face had hit the bed. He was able to turn enough to see the old man standing in the doorway, wincing and holding his back. The old man grinned.
Ender grinned back. "Teacher," he said. "Do you have a name?" "Mazer Rackham," said the old man. Then he was gone.
***
From then on, Ender was either with Mazer Rackham or alone. The old man rarely spoke, but he was there; at meals, at tutorials, at the simulator, in his room at night. Sometimes Mazer would leave, but always, when Mazer wasn't there, the door was