“This is what historians usually do, quibble about cause and effect when the point is, there are times when the world is in flux and the right voice in the right place can move the world. Thomas Paine and Ben Franklin, for instance. Bismark. Lenin.”

“There are times when the world is rearranging itself, and at times like that, the right words can change the world.”

“There are hundreds of possible causes for every effect, and a hundred possible effects for every cause.”

“There was no doubt now in Ender's mind. There was no help for him. Whatever he faced, now and forever, no on ewould save him from it. Peter might be scum, but Peter had been right, always right; the power to cause pain is the only power that matters, the power to kill and destroy, because if you can't kill then you are always subject to those who can, and nothing and no one will ever save you.”

“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.”

“But when it comes to human beings, the only type of cause that matters is final cause, the purpose. What a person had in mind. Once you understand what people really want, you can't hate them anymore. You can fear them, but you can't hate them, because you can always find the same desires in your own heart.”

“When you walk on the face of a world, then forgiveness comes.”