“You don’t understand what time is,” he said. “You say the past is gone, the future is not real, there is no change, no hope. You think Anarres is a future that cannot be reached, as your past cannot be changed. So there is nothing but the present, this Urras, the rich, real, stable present, the moment now. And you think that is something which can be possessed! You envy it a little. You think it’s something you would like to have. But it is not real, you know. It is not stable, not solid—nothing is. Things change, change. You cannot have anything… And least of all can you have the present, unless you accept with it the past and the future. Not only the past but also the future, not only the future but also the past! Because they are real: only their reality makes the present real. You will not achieve or even understand Urras unless you accept the reality, the enduring reality, of Anarres. You are right, we are the key. But when you said that, you did not really believe it. You don’t believe in Anarres. You don’t believe in me, though I stand with you, in this room, in this moment… My people were right, and I was wrong, in this: We cannot come to you. You will not let us. You do not believe in change, in chance, in evolution. You would destroy us rather than admit our reality, rather than admit that there is hope! We cannot come to you. We can only wait for you to come to us.”

Keng sat with a startled and thoughtful, and perhaps slightly dazed, expression.

“I don’t understand—I don’t understand,” she said at last. “You are like somebody from our own past, the old idealists, the visionaries of freedom; and yet I don’t understand you, as if you were trying to tell me of future things; and yet, as you say, you are here, now!…” She had not lost her shrewdness. She said after a little while, “Then why is it that you came to me, Shevek?”

“Oh, to give you the idea. My theory, you know. To save it from becoming a property of the Ioti, an investment or a weapon. If you are willing, the simplest thing to do would be to broadcast the equations, to give them to physicists all over this world, and to the Hainish and the other worlds, as soon as possible. Would you be willing to do that?”

“More than willing.”

“It will come to only a few pages. The proofs and some of the implications would take longer, but that can come later, and other people can work on them if I cannot.”

“But what will you do then? Do you mean to go back to Nio? The city is quiet now, apparently, the insurrection seems to be defeated, at least for the time being; but I’m afraid the Ioti government regards you as an insurrectionary. There is Thu, of course—”