“What color is time? Where do the thoughts of the dead go? How is it diseases spread but miracles don't? Have you ever thought of that?”

“I ain't...Don't know how to say it up right. Never--Fuck, Chess. Thought you was dead once before, you recall? Never felt so bad in my life, not ever. Then on the other day, thought you was gone and just....I can't do it, bein without you.”

“The history of thought - or of reason - is like this river. The thoughts that are washed along with the current of past tradition, as well as the material conditions prevailing at the time, help to determine how you think. You can therefore never claim that any particular thought is correct for ever and ever. But the thought can be correct from where you stand.”

“Don't join the book burners. Do not think you are going to conceal thoughts by concealing evidence that they ever existed.”

“Have you thought of an ending?""Yes, several, and all are dark and unpleasant.""Oh, that won't do! Books ought to have good endings. How would this do: and they all settled down and lived together happily ever after?""It will do well, if it ever came to that.""Ah! And where will they live? That's what I often wonder.”

“What am I now, Alai?""Still good.""At what?""At--anything. There's a million soldiers who'd follow you to the end of the universe.""I don't want to go to the end of the universe.""So where do you want to go? They'll follow you."I want to go home, thought Ender, but I don't know where it is.”