“The circle?” asked the politer inquisitor, with such evident yearning to understand that Shevek quite forgot Dearri, and plunged in with enthusiasm, gesturing with hands and arms as if trying to show his listener, materially, the arrows, the cycles, the oscillations he spoke of. “Time goes in cycles, as well as in a line. A planet revolving: you see? One cycle, one orbit around the sun, is a year, isn’t it? And two orbits, two years, and so on. One can count the orbits endlessly—an observer can. Indeed such a system is how we count time. It constitutes the timeteller, the clock. But within the system, the cycle, where is time? Where is beginning or end? Infinite repetition is an atemporal process. It must be compared, referred to some other cyclic or noncyclic process, to be seen as temporal. Well, this is very queer and interesting, you see. The atoms, you know, have a cyclic motion. The stable compounds are made of constituents that have a regular, periodic motion relative to one another. In fact, it is the tiny time-reversible cycles of the atom that give matter enough permanence that evolution is possible. The little timelessnesses added together make up time. And then on the big scale, the cosmos: well, you know we think that the whole universe is a cyclic process, an oscillation of expansion and contraction, without any before or after. Only within each of the great cycles, where we live, only there is there linear time, evolution, change. So then time has two aspects. There is the arrow, the running river, without which there is no change, no progress, or direction, or creation. And there is the circle or the cycle, without which there is chaos, meaningless succession of instants, a world without clocks or seasons or promises.”

“You can’t assert two contradictory statements about the same thing,” said Dearri, with the calmness of superior knowledge. “In other words, one of these ‘aspects’ is real, the other’s simply an illusion.”

“Many physicists have said that,” Shevek assented.

“But what do you say?” asked the one who wanted to know.

“Well, I think it’s an easy way out of the difficulty… Can one dismiss either being, or becoming, as an illusion? Becoming without being is meaningless. Being without becoming is a big bore… If the mind is able to perceive time in both these ways, then a true chronosophy should provide a field in which the relation of the two aspects or processes of time could be understood.”

“But what’s the good of this sort of ‘understanding,’ ” Dearri said, “if it doesn’t result in practical, technological applications? Just word juggling, isn’t it.”

“You ask questions like a true profiteer,” Shevek said, and not a soul there knew he had insulted Dean with the most contemptuous word in his vocabulary; indeed Dearri nodded a bit, accepting the compliment with satisfaction.

Vea, however, sensed a tension, and burst in, “I don’t really understand a word you say, you know, but it seems to me that if I did understand what you said about the book—that everything really all exists now—then couldn’t we foretell the future? If it’s already there?”