西内SINE

奥拉觉得这个代表了我的想法，因为我们所知道的一切都犹如出生和死亡。你的身体将回归。任何人都能看到东西的周而复始。尘归于尘,土归于土。
Aura thought this title presents what I mean, because everything we know is like birth and death. The material you are goes back. Anybody can see stuff go back. Dust to dust.

但是科学家卡尔·萨根很擅长文字表达。所以我记得:
But scientist Carl Sagan was good with words. So I remember:

卡尔·萨根，《宇宙》(纽约:兰登书屋，1980)，第24、30-31、38、218、224-225页摘要:
Carl Sagan, Cosmos (New York: Random House,1980), a summary of pp. 24, 30-31, 38, 218, 224-225:

首先是氢，源自大爆炸。所有东西都有重量，包括氢。如果有重量，就会有重力和引力。因此，氢原子核撞击，产生热量，发生聚变。四个合在一起形成氦原子核。氢和氦，就是整个宇宙，除了1%。但是这两个元素形成了最后的百分之一：三个氦核形成一个碳核;四个形成了氧气;五个形成了氖;六个形成了镁;七个形成了硅;八个形成了硫;就这样形成了所有元素。越来越重的元素，更强的碰撞，产生了更大的热量，直到有了恒星。各种元素的混合和热量形成了分子，更复杂的分子是有机分子，直到DNA基因。进化从分子开始，随着不同的有机分子结合在一起变得更加复杂，于是就有了细胞。细胞聚集和繁殖导致细胞的整体进化，就像人类建造城市一样。所以人体中有很多种类的细菌也就不足为奇了，大多数细菌都能和身体和睦相处，但有些细菌却不能。它看起来像一个大杂烩，但组件是免费的。在地球上，在世界各地，越来越复杂的事物在发展。射电望远镜可以看到太空中的有机分子，萨根在大学的朋友发现了一颗含有氨基酸的陨石，而氨基酸能构成生命。
First hydrogen, from Big Bang. Everything weighs, even hydrogen. If weight, gravity and attraction. So hydrogen nuclei hit, make heat, fuse. Four together make helium nucleus. Hydrogen plus helium, is entire universe, except one percent. But these two elements start up the last one percent : three helium nuclei make a carbon nucleus; four, oxygen; five, neon; six, magnesium; seven, silicon; eight, sulfur; and and and until every element exists. Stronger collisions of heavier and heavier elements makes greater heat until there are stars. Mixing and heating elements makes molecules, more complex ones are organic molecules until you have sDNA. So evolution starts with molecules and then gets more complex as different kinds of organic molecules join together and then you have cells. Cells coming together and reproducing leads to whole civilizations of cells, like people make cities. So it's no surprise the human body includes many species of bacteria where most get along with body, except sometimes some other species don’t. It may seem like a hodgepodge, but the components are complimentary. More and more complexity develops, on earth, and everywhere. Radio telescopes see organic molecules in space, and Sagan's friends at University found a meteorite with amino acids that make life.

所以，从看似虚无的氢气中，诞生了我们所知道的最复杂的东西:人类。我们还会回到看似虚无的地方。行星和恒星也是这样的。
So, from what seems nothing, hydrogen gas, comes the most complex thing we know: us. And we go back to what seems nothing. Planets and stars also.

哦!这提醒我了。有家新公司能在几个小时内用旧塑料生产新塑料。我要告诉奥拉，让她开心一下。科罗纳多也是：也许他会去买股票赚点钱。
Oh ! That remind me. New company making new plastic from old plastic in a few hours. I'm going to tell Aura and make her happy. Coronado, too: Maybe he'll buy stock and make some money.