“We were all fated to die, and so it is good that at least we can be sure our deaths today might bring about a good end, might make the world a better place.”

“Human beings are free except when humanity needs them. Maybe humanity needs you. To do something. Maybe humanity needs me—to find out what you're good for. We might both do despicable things, Ender, but if humankind survives, then we were good tools.”

“If only we could stand outside our lives and look at what we do, we might repair so many injuries before they're done.”

“We care about moral issues, nobility, decency, happiness, goodness—the issues that matter in the real world, but which can only be addressed, in their purity, in fiction.”

“A good working definition of fanaticism is that you are so convinced of your views and policies that you are sure that anyone who opposed them must be either stupid and decieved or have some ulterior motive. We are today a nation where almost everyone in the public eye displays fanaticism with every utterance.”

“I saw what Andrew did in our family. I saw that he came in and listened and watched and understood who we were, each individual one of us. He tried to discover our need and then supply it. He took responsibility for other people and it didn't seem to matter to him how much it cost him. And in the end, while he could never make the Ribeira family normal, he gave us peace and pride and identity. Stability. He married Mother and was kind to her. He loved us all. He was always there when we wanted him, and seemed unhurt by it when we didn't. He was firm with us about expecting civilized behavior, but never indulged his whims at our expense. And I thought: This is so much more important than science. Or politics, either. Or any particular profession or accomplishment or thing you can make. I thought: If I could just make a good family, if I could just learn to be to other children, their whole lives, what Andrew was, coming so late into ours, then that would mean more in the long run, it would be a finer accomplishment than anything I could ever do with my mind or hands.""So you're a career father," said Valentine."Who works at a brick factory to feed and clothe the family. Not a brick-maker who also has kids. Lini also feels the same way... She followed her own road to the same place. We do what we must to earn our place in the community, but we live for the hours at home. For each other, for the children.”

“In philosophy class I think we finally decided that 'good' is an infinitely recursive term - it can't be defined except in terms of itself. Good is good because it's better than bad, though why it's better to be good than bad depends on how you define good, and on and on.”