Please extract keywords from this, in a bulleted list: Then one day Jonathan, standing on the shore, closing his eyes, concentrating, all in a flash knew what Chiang had been telling him. "Why, that's true! I am a perfect, unlimited gull!" He felt a great shock of joy. 
"Good!" sad Chiang, and there was victory in his voice. 
 Jonathan opened his eyes. He stood alone with the Elder on a totally different seashore - trees down to the water's edge, twin yellow suns turning overhead. 
"At last you've got the idea," Chiang said, "but your control needs a little work..."
 Jonathan was stunned. "Where are we?"
 Utterly unimpressed with the strange surroundings, the Elder brushed the question aside. "We're on some planet, obviously, with a green sky and a double star for a sun."
 Jonathan made a scree of delight, the first sound he had made since he had left Earth. "IT WORKS!" 
"Well, of course it works, Jon." said Chiang. "It always works, when you know what you're doing. Now about your control..."
 By the time they returned, it was dark. The other gulls looked at Jonathan with awe in their golden eyes, for they have seen him disappear from where he had been rooted for so long. 
 He stood their congratulations for less than a minute, "I'm the newcomer here! I'm just beginning! It is I who must learn from you!" 
"I wonder about that, Jon," said Sullivan, standing near. "You have less fear of learning than any gull I've seen in the thousand years." The Flock fell silent, and Jonathan fidgeted in embarrassment. 
"We can start working with time if you wish," Chiang said, "till you can fly the past and the future. And then you will be ready to begin the most difficult, the most powerful, the most fun of all. You will be ready to begin to fly up and 
A month went by, or something that felt about like a month, and Jonathan learned at the tremendous rate. He always had learned quickly from ordinary experience, and now, the special student of the Elder Himself, he took in new ideas like a streamlined feathered computer. 
 But then the day came that Chiang vanished. He had been talking quietly with them all, exhorting them never to stop their learning and their practicing and their striving to understand more of the perfect invisible principle of all life. Then, as he spoke, his feathers went brighter and brighter and at last turned so brilliant that no gull could look upon him. 
"Jonathan," he said, and these were the last words that he spoke, "keep working on love."
 When they could see again, Chiang was gone. 
 As the days went past, Jonathan found himself thinking time and time again of the Earth from which he had come. If he had known there just a tenth, just a hundredth, of what he knew here, how much more life would have meant! He stood on the sand and fell to wondering if there was a gull back there who might be struggling to break out of his limits, to see the meaning of flight beyond a way of travel to get a breadcrumb from a rowboat. Perhaps there might even have been one made Outcast for speaking his truth in the face of the Flock. And the more Jonathan practiced his kindness lessons, and the more he worked to know the nature of love, the more he wanted to go back to Earth. For in spite of his lonely past, Jonathan Seagull was born to be an instructor, and his own way of demonstrating love was to give something of the truth that he had seen to a gull who asked only a chance to see truth for himself. 
 Sullivan, adept now at thought-speed flight and helping the others to learn, was doubtful. 
"Jon, you were Outcast once. Why do you think that any of the gulls in your old time would listen to you now? You know the proverb, and it's true: The gull sees farthest who flies highest. Those gulls where you came from are standing on the ground, squawking and fighting among themselves. They're a thousand miles from heaven - and you say you want to show them heaven from where they stand! Jon, they can't see their own wingtips! Stay here. Help the new gulls here, the ones who are high enough to see what you have to tell them." He was quiet for a moment, and then he said, "What if Chiang had gone back to his old worlds? Where would you have been today?"
 The last point was the telling one, and Sullivan was right. 
 Jonathan stayed and worked with the new birds coming in, who were all very bright and quick with their lessons. but the old feeling cam back, and he couldn't help but think that there might be one or two gulls back on Earth who would be able to learn, too. How much more would he have known by now if Chiang had come to him on the day that he was Outcast! 
"Sully, I must go back," he said at last. "Your students are doing well. They can help you bring the newcomers along."
 Sullivan sighed, but he did not argue. "I think I'll miss you, Jonathan," was all that he said. 
"Sully, for shame!" Jonathan said in reproach, "and don't be foolish! What are we trying to practice every day? If our friendship depends on things like space and time, then when we finally overcome space and time, we've destroyed our own brotherhood! But overcome space, and all we have left is Here. Overcome time, and all we have left is Now. And in the middle of Here and Now, don't you think that we might see each other once or twice?"
 Sullivan Seagull laughed in spite of himself. "You crazy bird," he said kindly. "If anybody can show someone on the ground how to see a thousand miles, it will be Jonathan Livingston Seagull.: He looked at the sand. "Good­bye, Jon, my friend." 
"Good-bye, Sully. We'll meet again." And with that, Jonathan held in thought an image of the great gull-flocks on the shore of another time, and he knew with practiced ease that he was not bone and feather but a perfect idea of freedom and fight, limited by nothing at all. 
 Fletcher Lynd Seagull was still quite young, but already he knew that no bird had ever been so harshly treated by any Flock, or with so much injustice. 
"I don't care what they say," he thought fiercely , and his vision blurred as he flew out toward the Far Cliffs. "There's so much more to flying than just flapping around from place to place! A.....a....mosquito does that! One little barrel-roll around the Elder Gull, just for fun, and I'm Outcast! Are they blind? Can't they see? Can't they think of the glory that it'll be when we really learn to fly? 
 "I don't care what they think. I'll show them what flying is! I'll be pure Outlaw, if that's the way they want it. And I'll make them so sorry..."
 The voice came inside his own head, and though it was very gentle, it 
"Don't be harsh on them, Fletcher Seagull. In casting you out, the other gulls have only hurt themselves, and one day they will know this, and one day they will see what you see. Forgive them, and help them to understand."
 An inch from his right wingtip flew the most brilliant white gull in all the world, gliding effortlessly along, not moving a feather, at what was very nearly Fletcher's top speed. 
 There was a moment of chaos in the young bird. 
"What's going on? Am I mad? Am I dead? What is this?" 
Low and calm, the voice went on within his thought, demanding an answer. "Fletcher Lynd Seagull, do you want to fly?" 
"YES, I WANT TO FLY!" 
"Fletcher Lynd Seagull, do you want to fly so much that you will forgive the Flock, and learn, and go back to them one day and work to help them know?"
 There was no lying to this magnificent skillful being, no matter how proud or how hurt a bird was Fletcher Seagull. 
"I do," he said softly. 
"Then, Fletch," that bright creature said to him, and the voice was very kind, "Let's begin with Level Flight..."
리스에서 키워드를 추출하여 글머리 기호 목록으로 만들었습니다: 그러던 어느 날 조나단은 바닷가에 서서 눈을 감고 집중하고 있다가 치앙의 말이 무슨 뜻인지 순식간에 깨달았습니다. "그래, 맞아! 나는 완벽하고 무한한 갈매기다!" 그는 큰 기쁨의 충격을 느꼈습니다. 
"좋아!" 슬픈 치앙의 목소리에는 승리의 기운이 가득했습니다. 
 조나단은 눈을 떴다. 그는 장로와 함께 완전히 다른 해변에 홀로 서 있었어요. 물가에 나무가 우거져 있고, 머리 위로 노란 해가 두 개나 떠 있었죠. 
"마침내 아이디어를 얻었군요." 치앙이 말했다. "하지만 통제력을 키우려면 약간의 연습이 필요해요..."
 조나단은 깜짝 놀랐습니다. "여기가 어디죠?"
 낯선 환경에 전혀 감흥을 느끼지 못한 장로는 질문을 제쳐두었습니다. "여긴 분명 푸른 하늘과 이중성 태양이 있는 행성이야." 장로님이 대답했습니다.
 조나단은 지구를 떠난 후 처음으로 기쁨의 비명을 질렀습니다. "작동해요!" 
"당연하지, 존." 치앙이 말했다. "네가 뭘 하고 있는지 알면 항상 작동하잖아. 이제 당신의 통제에 대해..."
 그들이 돌아왔을 때는 어두워졌습니다. 다른 갈매기들은 조나단이 오랫동안 뿌리를 내렸던 곳에서 사라지는 것을 목격했기에 황금빛 눈동자에 경외감을 담아 그를 바라보았습니다. 
 그는 1분도 채 되지 않는 시간 동안 그들의 축하를 받으며 "내가 여기 새로 온 사람이야! 저는 이제 시작입니다! 여러분에게 배워야 할 사람은 바로 저입니다!"라고 말했습니다. 
옆에 서 있던 설리번이 "그 말이 궁금하네요, 존"이라고 말했습니다. "자네는 내가 천 년 동안 본 어떤 갈매기보다 배움에 대한 두려움이 적군." 무리는 침묵했고 조나단은 당황한 듯 안절부절못했습니다. 
"치앙은 "네가 원한다면 과거와 미래를 날 수 있을 때까지 시간을 두고 연습을 시작할 수 있어. 그러면 가장 어렵고, 가장 강력하고, 가장 재미있는 일을 시작할 준비가 될 것입니다. 당신은 비행을 시작할 준비가 될 것입니다. 
한 달이 지나고, 아니 한 달처럼 느껴지는 시간이 지나자 조나단은 엄청난 속도로 배웠습니다. 그는 항상 평범한 경험에서 빠르게 배웠고, 이제 장로의 특별한 학생 인 그는 유선형 깃털 컴퓨터처럼 새로운 아이디어를 받아 들였습니다. 
 그러던 어느 날 장 장로가 사라졌습니다. 그는 모든 제자들과 조용히 이야기를 나누며 배움과 수행을 멈추지 말고 모든 생명의 보이지 않는 완전한 원리를 더 많이 이해하려는 노력을 멈추지 말라고 권면했습니다. 그러자 그가 말하면서 깃털이 점점 더 밝아지더니 마침내 갈매기가 그를 쳐다볼 수 없을 정도로 밝게 빛났습니다. 
"조나단," 그가 마지막으로 한 말은 "사랑을 위해 계속 노력해라"였습니다.
 그들이 다시 볼 수 있었을 때 치앙은 사라졌습니다. 
 며칠이 지나면서 조나단은 자신이 왔던 지구에 대해 계속해서 생각하게 되었습니다. 그가 이곳에서 아는 것의 10분의 1, 100분의 1만이라도 그곳에서 알았더라면 얼마나 더 많은 삶을 살 수 있었을까요! 그는 모래 위에 서서 노 젓는 배에서 빵 부스러기를 얻기 위한 이동 수단을 넘어 비행의 의미를 알기 위해 자신의 한계를 벗어나기 위해 고군분투하는 갈매기가 저기 있는지 궁금해했습니다. 어쩌면 무리에 맞서 자신의 진실을 말했다는 이유로 추방당한 갈매기도 있었을지도 모릅니다. 조나단은 친절의 교훈을 실천할수록, 사랑의 본질을 알기 위해 노력할수록 지구로 돌아가고 싶다는 생각을 더 많이 했습니다. 외로운 과거에도 불구하고 조나단 시걸은 강사가 되기 위해 태어났고, 자신이 본 진실을 직접 볼 기회만 달라는 갈매기에게 자신이 본 진실을 알려주는 것이 사랑을 보여주는 자신만의 방식이었기 때문이죠. 
 이제 생각의 속도로 비행하고 다른 사람들의 학습을 돕는 데 능숙해진 설리반은 의구심을 품었습니다. 
"존, 너도 한때 추방당했었잖아. 그 시절의 갈매기들이 지금 네 말에 귀를 기울일 것 같아? 너도 속담에 '가장 높이 나는 갈매기가 가장 멀리 본다'는 말이 있잖아. 당신이 온 곳의 갈매기들은 땅바닥에 서서 꽥꽥거리며 서로 싸우고 있습니다. 그들은 하늘에서 천 마일이나 떨어져 있는데, 당신은 그들이 서 있는 곳에서 하늘을 보여주고 싶다고 말하잖아요! 존, 갈매기들은 자기 날개 끝을 볼 수 없어! 여기 있어. 여기 있는 새 갈매기들을 도와줘요. 충분히 높은 곳에 있는 갈매기들이 당신이 말하는 것을 볼 수 있게요." 그는 잠시 조용히 있다가 "만약 치앙이 옛날 세계로 돌아갔다면 어땠을까요? 지금 당신은 어디에 있었을까요?"
 설리번의 마지막 말이 결정적이었고, 설리번의 말이 맞았습니다. 
 조나단은 남아서 새로 들어온 새들과 함께 일했는데, 모두 매우 영리하고 빠르게 배웠지만 예전의 감정이 떠올랐고, 지구에도 한두 마리 정도는 배울 수 있는 갈매기가 있을지도 모른다는 생각을 지울 수 없었습니다. 추방당하던 날 치앙이 자신을 찾아왔다면 지금쯤 얼마나 더 많은 것을 알 수 있었을까요! 
"설리, 난 돌아가야 해." 그가 마침내 말했다. "당신의 학생들은 잘하고 있어요. 그들이 새로 온 사람들을 데려오는 걸 도와줄 수 있을 거예요."
 설리반은 한숨을 쉬었지만 반박하지 않았습니다. "보고 싶을 거예요, 조나단"이라고만 말했다. 
"설리, 부끄러운 줄 알아!" 조나단은 비난하듯 말했다. "그리고 어리석게 굴지 마! 우리는 매일 무엇을 연습하려고 하는 걸까요? 우리의 우정이 사물에 달려 있다면 