Sophie put all the typed pages from the unknown philosopher back into the cookie tin and put the lid on it. She crawled out of the den1 and stood for a while looking across the garden. She thought about what happened yesterday. Her mother had teased her about the "love letter" again at breakfast this morning. She walked quickly over to the mailbox to prevent the same thing from happening today. Getting a love letter two days in a row would be doubly embarrassing.
There was another little white envelope! Sophie began to discern a pattern in the deliveries: every afternoon she would find a big brown envelope. While she read the contents, the philosopher would sneak2 up to the mailbox with another little white envelope.
So now Sophie would be able to find out who he was. If it was a he! She had a good view of the mailbox from her room. If she stood at the window she would see the mysterious philosopher. White envelopes don't just appear out of thin air!
Sophie decided3 to keep a careful watch the following day. Tomorrow was Friday and she would have the whole weekend ahead of her.
She went up to her room and opened the envelope. There was only one question today, but it was even dumber than the previous three:
Why is Lego the most ingenious toy in the world?
For a start, Sophie was not at all sure she agreed that it was. It was years since she had played with the little plastic blocks. Moreover she could not for the life of her see what Lego could possibly have to do with philosophy.
But she was a dutiful student. Rummaging4 on the top shelf of her closet, she found a bag full of Lego blocks of all shapes and sizes.
For the first time in ages she began to build with them. As she worked, some ideas began to occur to her about the blocks.
They are easy to assemble, she thought. Even though they are all different, they all fit together. They are also unbreakable. She couldn't ever remember having seen a broken Lego block. All her blocks looked as bright and new as the day they were bought, many years ago. The best thing about them was that with Lego she could construct any kind of object. And then she could separate the blocks and construct something new.
What more could one ask of a toy? Sophie decided that Lego really could be called the most ingenious toy in the world. But what it had to do with philosophy was beyond her.
She had nearly finished constructing a big doll's house. Much as she hated to admit it, she hadn't had as much fun in ages.
Why did people quit playing when they grew up?
When her mother got home and saw what Sophie had been doing, she blurted5 out, "What fun! I'm so glad you're not too grown up to play!"
"I'm not playing!" Sophie retorted indignantly, "I'm doing a very complicated philosophical6 experiment!"
Her mother signed deeply. She was probably thinking about the white rabbit and the top hat.
When Sophie got home from school the following day, there were several more pages for her in a big brown envelope. She took them upstairs to her room. She could not wait to read them, but she had to keep her eye on the mailbox at the same time.
THE ATOM THEORY
Here I am again, Sophie. Today you are going to hear about the last of the great natural philosophers. His name is Democritus (c. 460-370 B.C.) and he was from the little town of Abdera on the northern Aegean coast.
If you were able to answer the question about Lego blocks without difficulty, you should have no problem understanding what this philosopher's project was.
Democritus agreed with his predecessors7 that transformations8 in nature could not be due to the fact that anything actually "changed." He therefore assumed that everything was built up of tiny invisible blocks, each of which was eternal and immutable10. Democritus called these smallest units atoms.
The word "a-tom" means "un-cuttable." For Democritus it was all-important to establish that the constituent11 parts that everything else was composed of could not be divided indefinitely into smaller parts. If this were possible, they could not be used as blocks. If atoms could eternally be broken down into ever smaller parts, nature would begin to dissolve like constantly diluted12 soup.
Moreover, nature's blocks had to be eternal--because nothing can come from nothing. In this, he agreed with Parmenides and the Eleatics. Also, he believed that all atoms were firm and solid. But they could not all be the same. If all atoms were identical, there would still be no satisfactory explanation of how they could combine to form everything from poppies and olive trees to goatskin and human hair.
Democritus believed that nature consisted of an unlimited13 number and variety of atoms. Some were round and smooth, others were irregular and jagged. And precisely14 because they were so different they could join together into all kinds of different bodies. But however infinite they might be in number and shape, they were all eternal, immutable, and indivisible.
When a body--a tree or an animal, for instance--died and disintegrated15, the atoms dispersed16 and could be used again in new bodies. Atoms moved around in space, but because they had "hooks" and "barbs17," they could join together to form all the things we see around us.
So now you see what I meant about Lego blocks. They have more or less the same properties as those which Democritus ascribed to atoms. And that is what makes them so much fun to build with. They are first and foremost indivisible. Then they have different shapes and sizes. They are solid and impermeable18. They also have "hooks" and "barbs" so that they can be connected to form every conceivable figure. These connections can later be broken again so that new figures can be constructed from the same blocks.
The fact that they can be used over and over is what has made Lego so popular. Each single Lego block can be part of a truck one day and part of a castle the day after. We could also say that lego blocks are "eternal." Children of today can play with the same blocks their parents played with when they were little.
We can form things out of clay too, but clay cannot be used over and over, because it can be broken up into smaller and smaller pieces. These tiny pieces can never be joined together again to make something else.
Today we can establish that Democritus' atom theory was more or less correct. Nature really is built up of different "atoms" that join and separate again. A hydrogen atom in a cell at the end of my nose was once part of an elephant's trunk. A carbon atom in my cardiac muscle was once in the tail of a dinosaur19.
In our own time, however, scientists have discovered that atoms can be broken into smaller "elemental particles." We call these elemental particles protons, neutrons20, and electrons. These will possibly some day be broken into even lesser21 particles. But physicists22 agree that somewhere along the line there has to be a limit. There has to be a "minimal23 part" of which nature consists.
Democritus did not have access to modern electronic apparatus24. His only proper equipment was his mind. But reason left him no real choice. Once it is accepted that nothing can change, that nothing can come out of nothing, and that nothing is ever lost, then nature must consist of infinitesimal blocks that can join and separate again.
Democritus did not believe in any "force" or "soul" that could intervene in natural processes. The only things that existed, he believed, were atoms and the void. Since he believed in nothing but material things, we call him a materialist25.
According to Democritus, there is no conscious "design" in the movement of atoms. In nature, everything happens quite mechanically. This does not mean that everything happens randomly26, for everything obeys the inevitable27 laws of necessity. Everything that happens has a natural cause, a cause that is inherent in the thing itself. Democritus once said that he would rather discover a new cause of nature than be the King of Persia.
The atom theory also explains our sense perception, thought Democritus. When we sense something, it is due to the movement of atoms in space. When I see the moon, it is because "moon atoms" penetrate28 my eye.
But what about the "soul," then? Surely that could not consist of atoms, of material things? Indeed it could. Democritus believed that the soul was made up of special round, smooth "soul atoms." When a human being died, the soul atoms flew in all directions, and could then become part of a new soul formation.
This meant that human beings had no immortal29 soul, another belief that many people share today. They believe, like Democritus, that "soul" is connected with brain, and that we cannot have any form of consciousness once the brain disintegrates30.
Democritus's atom theory marked the end of Greek natural philosophy for the time being. He agreed with ,Her-aclitus that everything in nature "flowed," since Torms come and go. But behind everything that flowed there were some eternal and immutable things that did not flow. Democritus called them atoms.
During her reading Sophie glanced out of the window several times to see whether her mysterious correspondent had turned up at the mailbox. Now she just sat staring down the road, thinking about what she had read. She felt that Democritus's ideas had been so simple and yet so ingenious. He had discovered the real solution to the problem of "basic substance" and "transformation9." This problem had been so complicated that philosophers had gone around puzzling over it for generations. And in the end Democritus had solved it on his own by using his common sense.
Sophie could hardly help smiling. It had to be true that nature was built up of small parts that never changed. At the same time Heraclitus was obviously right in thinking that all forms in nature "flow." Because everybody dies, animals die, even a mountain range slowly disintegrates. The point was that the mountain range is made up of tiny indivisible parts that never break up.
At the same time Democritus had raised some new questions. For example, he had said that everything happened mechanically. He did not accept that there was any spiritual force in life--unlike Empedocles and An-axagoras. Democritus also believed that man had no immortal soul.
Could she be sure of that?
She didn't know. But then she had only just begun the philosophy course.
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1
den
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| n.兽穴；秘密地方；安静的小房间，私室 | |
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sneak
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| vt.潜行(隐藏,填石缝)；偷偷摸摸做；n.潜行；adj.暗中进行 | |
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decided
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| adj.决定了的，坚决的；明显的，明确的 | |
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rummaging
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| 翻找，搜寻( rummage的现在分词 )； 海关检查 | |
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blurted
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| v.突然说出，脱口而出( blurt的过去式和过去分词 ) | |
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philosophical
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| adj.哲学家的，哲学上的，达观的 | |
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predecessors
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| n.前任( predecessor的名词复数 )；前辈；（被取代的）原有事物；前身 | |
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transformations
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| n.变化( transformation的名词复数 )；转换；转换；变换 | |
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transformation
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| n.变化；改造；转变 | |
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10
immutable
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| adj.不可改变的，永恒的 | |
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constituent
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| n.选民；成分，组分；adj.组成的，构成的 | |
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12
diluted
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| 无力的，冲淡的 | |
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unlimited
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| adj.无限的，不受控制的，无条件的 | |
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14
precisely
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| adv.恰好，正好，精确地，细致地 | |
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disintegrated
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| v.（使）破裂[分裂，粉碎]，（使）崩溃( disintegrate的过去式和过去分词 ) | |
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dispersed
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| adj. 被驱散的, 被分散的, 散布的 | |
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barbs
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| n.（箭头、鱼钩等的）倒钩( barb的名词复数 )；带刺的话；毕露的锋芒；钩状毛 | |
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impermeable
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| adj.不能透过的，不渗透的 | |
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dinosaur
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| n.恐龙 | |
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neutrons
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| n.中子( neutron的名词复数 ) | |
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lesser
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| adj.次要的，较小的；adv.较小地，较少地 | |
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physicists
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| 物理学家( physicist的名词复数 ) | |
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minimal
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| adj.尽可能少的，最小的 | |
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apparatus
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| n.装置，器械；器具，设备 | |
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materialist
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| n. 唯物主义者 | |
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randomly
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| adv.随便地，未加计划地 | |
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inevitable
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| adj.不可避免的，必然发生的 | |
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penetrate
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| v.透(渗)入；刺入，刺穿；洞察，了解 | |
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immortal
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| adj.不朽的；永生的，不死的；神的 | |
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disintegrates
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| n.（使）破裂[分裂，粉碎]，（使）崩溃( disintegrate的名词复数 )v.（使）破裂[分裂，粉碎]，（使）崩溃( disintegrate的第三人称单数 ) | |
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