The only teacher that's worth anything to you is your enemy.
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 armi...
(n.) One who, or that which, makes an end of something; as, the ender of my life.
While you're governing the colony and I'm writing political philosophy, They'll never guess that in the darkness of night we sneak into each other's room and play checkers and have pillow fights.
When it comes down to it, though, the real decision is inevitable: If one of us has to be destroyed, let's make damn sure we're the ones alive at the end.
Compassion is what you're good at. I'm better at complex searches through organized data structures.
I think you don't grow up until you stop worrying about other people's purposes or lack of them and find the purposes you believe in for yourself.
For the first time, Ender had found a living mind he could admire.
Nights were so real that days began to seem dreamlike to him