Col. Graff: It was tactical, a strategy to stop future attack.
Col. Graff: Young people integrate complex data more easily than grown ups. If there's a chance you can stop them, then I have to ask you to come with me.
Ender: That's what I was born for, right?
Ender: Valentine was too compassionate for battle. Peter was too quick to battle. Colonel Hiram says I have to find a balance between those two emotions.
Ender: Sir, you made them hate me.
Col. Graff says they need Ender to be the next Napoleon or Julius Caesar.
Ender: Julius Caesar was assassinated and Napoleon lost in the end.