“What happens when you win?When your enemies are at your mercy: how will you act then? Compromise is the temptation of the weak; this is the test for the strong.”

“The real test of love is when a person—including you—can know your weaknesses, your stupidities and your smallnesses, and still love you.”

“Appear weak when you are strong, and strong when you are weak.”

“An enemy, Ender Wiggin," whispered the old man. "I am your enemy, the first one you've ever had who was smarter than you. There is no teacher but the enemy. No one but the enemy will tell you what the enemy is going to do. No one but the enemy will ever teach you how to destroy and conquer. Only the enemy shows you where you are weak. Only the enemy tells you where he is strong. And the rules of the game are what you can do to him and what you can stop him from doing to you. I am your enemy from now on. From now on I am your teacher.”

“The ideal of self-control is supreme. This life is a test—is a test—is a test. You have not passed until you have endured to the end and are dead. You will be tried every day of your life, whether you know it or not. Today, we are all bombarded by stimuli toward the loosening of moral controls. The provocation is enormous. You must practice self-control and have a strong repertoire of such abilities, so that when stress comes, you can cope. Mercifully, the Lord permits us small doses of evil to practice our controls on before we are hit with real temptation, but then it comes.”

“I don't know who the good guys are anymore. But I do know what the enemy is. It's the compromise of principles. You lose the war when you lose your principles. And the first principle is to look out for your comrades.”