"It is cheering to note that the crew seems only more resolute. We go on to Capella; its spectrum, so like our own Sun's, beckons. If success comes there, a century will have passed before we can return to Earth; friends, relatives, all the generation that launched the _Quest_ ships will be long since dead. Nevertheless we go on. Our generation's dream, humanity's dream, lives in us and in the ship forever...." Presently Knof Llud switched off that younger voice of his and leaned back, an ironic smile touching his lips. That fervent idealism seemed remote and foreign to him now. The fanfares of departure must still have been ringing in his ears. He rose, slipped the record back in its niche and picked out another, later, one. "One week since we passed close enough to Aldebaran to ascertain that that system, too, is devoid of planets. "We face the unpleasant realization that what was feared is probably true--that worlds such as the Sun's are a rare accident, and that we may complete our search without finding even one new Earth. "It makes no difference, of course; we cannot betray the plan.... This may be man's last chance of escaping his pitiful limitation to one world in all the Universe. Certainly the building of this ship and its two sisters, the immense expenditure of time and labor and energy stores that went into them, left Earth's economy drained and exhausted. Only once in a long age does mankind rise to such a selfless and transcendent effort--the effort of Egypt that built the pyramids, or the war efforts of the nations in the last great conflicts of the twentieth century. "Looked at historically, such super-human outbursts of energy are the result of a population's outgrowing its room and resources, and therefore signalize the beginning of the end. Population can be limited, but the price is a deadly frustration, because growth alone is life.... In our day the end of man's room for growth on the Earth was in sight--so we launched the _Quests_. Perhaps our effort will prove as futile as pyramid-building, less practical than orgies of slaughter to reduce pressure.... In any case, it would be impossible to transport very many people to other stars; but Earth could at least go into its decline with the knowledge that its race went onward and upward, expanding limitlessly into the Universe.... "Hopeless, unless we find planets!" * * * * * Knof Llud shook his head sorrowfully and took off the spool. That was from the time when he had grown philosophical after the first disappointments. He frowned thoughtfully, choosing one more spool that was only four years old. The recorded voice sounded weary, yet alive with a strange longing.... "We are in the heart of Pleiades; a hundred stars show brilliant on the screens, each star encircled by a misty halo like lights glowing through fog, for we are traversing a vast diffuse nebula.