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

by Ursula K. Le Guin

And the translator is the god. Selver had brought a new word into the language of his people. He had done a new deed. The word, the deed, murder. Only a god could lead so great a newcomer as Death across the bridge between the worlds. But had he learned to kill his fellowmen among his own dreams of outrage and bereavement, or from the undreamed-of-actions of the strangers? Was he speaking his own language, or was he speaking Captain Davidson’s? That which seemed to rise from the root of his own suffering and express his own changed being, might in fact be an infection, a foreign plague, which would not make a new people of his race, but would destroy them. It was not in Raj Lyubov’s nature to think, “What can I do?” Character and training disposed him not to interfere in other men’s business. His job was to find out what they did, and his inclination was to let them go on doing it. He preferred to be enlightened, rather than to enlighten; to seek facts rather than the Truth. But even the most unmissionary soul, unless he pretend he has no emotions, is sometimes faced with a choice between commission and omission. “What are they doing?” abruptly becomes, “What are we doing?” and then, “What must I do?” That he had reached such a point of choice now, he knew, and yet did not know clearly why, nor what alternatives were offered him.

Hm