人类的贪欲！人类曾经生活在阶级国家和民族林立的时代，一些科技发展较快的国家和集团逐渐形成用武力和掠夺其它民族和国家财富的寄生结构。由此会产生越来越大矛盾和冲突。当贪欲和冲突疯狂时，核战争的导火线就被点燃。烈焰吞噬了全球的绿色，漫漫的核冬天笼罩了人类几个世纪。

“那新中方是怎么回事？”一位男生好奇地问。

“那是人类集中的天堂又是地狱。事实上，直到三千三百零三年前，东西方文明才整合成联合政府，借掌握古文明留下来的庞大军事和科技力量，统一大地，然后人类基本上都被集中到新中方城市圈中去，形成了人类文明的主体，抛弃城外大片放射性污染的废墟。”

“为什么新中方又是地狱呢，难道他们的社会不比我们富裕些吗？”另一位男生不解的问。

“是的，新中方的城市圈生活水平远高于我们，但是，城内文明在经过近二千年的重建与繁华后，近千年来加快控制，把所有城市连成一个自给自足的封闭堡垒，科技高度发展，精神文明停滞不前，天使和恶魔相互纠缠，那是许多罪恶的源泉。”

学良扬了扬头，动情地讲到：“只有鹤鸣先生，发现了重新绿化的方法，在城外茫茫地废墟之地上，开始重建绿色的征途，英明的大领袖领导着我们克服废墟中一个又一个困难，在一无所有的废墟中建立些初步繁荣基地，是人类真正城市文明的一种复兴。”

 “但是在城市和基地外大片无人的废墟中，实际存在着大量的变异人类，他们为了适者生存，为了应付恶劣的城外世界，发展了完全相反于城市文明的另一面，就是精神力量；能够生存下来的，都是因为精神和身体产生了变异的新一代人类。”一位有着奇异蓝色头发的白雪公主忍不住插嘴道。

学良一时突然语塞，大为惊奇，好在学良毕竟是专家级别的人物，立即感到了前面所讲的可能破绽，和对方可能的主要攻击点的脉络，随即敷衍道：“是的，从新中方城市圈形成时候起，人类的进化就开始了分离，关于城内进化文明和城外生物进化问题，那是一个复杂的问题，我们可以另找时间讨论。”

学良毕竟是学良，授课还是有一套的，老谋深算似的，我忍不住微微一笑。

等等，奇异的蓝色头发，脸容白色朦胧，显然是经过某种高级内气控制面部肌肉所作的掩饰，但轮廓好像熟悉，我的感应波发过去没有反应，我开始震惊，心的跳动在加快。

蓝色头发的白雪公主，很快闪出门外，那简直类似于我的搬运法，但是力道上轻柔灵巧，她似乎感到了我的关注。

我也不甘示弱，一个搬运法，身体已到教室门外，紧追过去，迎面是阵阵旋转清香扑面，但那绝不是银河飘香，而是来自----我急速回忆到，在孔雀身边给她治疗的日子，她是蓝姑娘！  

Human greed! Humans have lived in the class of the country and national age, some technology development countries and group rapid gradually formed with the parasitic structure force and plunder other ethnic and national wealth. This will produce more and more contradictions and conflicts. When greed and conflict crazy, a nuclear war was lit the fuse. Flames devoured the global green, long nuclear winter over the centuries.

"The NCS is how to return a responsibility?" A boy asks curiously.

"That is the human centralized heaven and hell. In fact, it was not until three thousand three hundred and three years ago, Eastern and Western civilization was integrated into a coalition government, through mastery of ancient civilization to the enormous military and technological strength, unity of earth, then human basically is on the new central city circle, formed the main body of human civilization, the ruins left outside the large radioactive contamination."

"Why the NCS is hell, don't their society richer than us?" Another boy asks.

"Yes, the new central city circle life level is much higher than we, however, after the reconstruction and flourishing in recent two thousand years, nearly a thousand years to speed up the control, all the city into a fortress of provide for oneself is closed, the high technology development, spiritual civilization not, angel and demon entangled with each other, the is the source of many evils."

Xue Liang arises his head, passionately says: "Only Mr. Heming, found a way to re greening, outside the ruins of the ground, began to rebuild green journey, the wise leaders led us to overcome one difficulty after another in the ruins, in the nothing ruin we established some preliminary prosperity base, that seems to be a revival of the real human city civilization."

"But the ruins outside of the city and the base are large area, the actual existence of variation in the human a lot, they were survival of the fittest, in order to cope with the harsh outside the world, the other side is completely opposite to the development of city civilization, is the spiritual force; to be able to survive, because of spirit and body of the variation of the new generation of human." A strange blue hair Snow White could not help interposes.

Xue Liang is suddenly say, amazed, but Xue Liang is the expert level figures, immediately felt the possible flaws before, and the main point of attack each other possible context, then a perfunctory way: "Yes, from the new central city circle formation time, human evolution began separation that is, the evolution of civilization and the city of biological evolution, but it is a complex problem, we can find another time to discuss."

Xue Liang after all is good, or a set of lectures, make every move only after mature deliberation like, I couldn't help but smile.

Wait moment, strange blue hair, face white misty, obviously using some advanced internal qi to control the facial muscles, but frame seems familiar, my induction wave has no reaction, I starts shaking, heart beat is accelerated.

The blue haired Princess Snow White, soon comes out, which is similar to break space, but the strength is quit smart. She seems to feel my attention.

I also not resigned to playing second fiddle, using the breaking space method, my body has been outside the classroom, following up the blue hair, my face meets intermittent rotary fragrance blowing, but it is not the Milky Way fragrance, but from ---- I rapidly recall, in the side to treat peacock day, she is the blue girl!