The Word for World is Forest (Hainish Cycle, #5)

by Ursula K. Le Guin

It is changed. You have walked on it and it is utterly changed. Before this day the thing we had to do was the right thing to do; the way we had to go was the right way and led us home. Where is our home now? For you’ve done what you had to do, and it was not right. You have killed men.

He preferred to be enlightened, rather than to enlighten; to seek facts rather than the Truth.

“Sometimes a god comes,” Selver said. “He brings a new way to do a thing, or a new thing to be done. A new kind of singing, or a new kind of death. He brings this across the bridge between the dream-time and the world-time. When he has done this, it is done. You cannot take things that exist in the world and try to drive them back into the dream, to hold them inside the dream with walls and pretenses. That is insanity. What is, is. There is no use pretending, now, that we do not know how to kill one another.”