Sophie's World Read online

  Then a satisfied smile spread over Sophie’s face. She remembered how once she and her father went shopping while her mother was busy baking Christmas cookies. When they got back there were a lot of gingerbread men spread out on the kitchen table. Even though they weren’t all perfect, in a way they were all the same. And why was that? Obviously because her mother had used the same mold for all of them.

  Sophie felt so pleased with herself for having remembered the incident that she pronounced herself done with the first question. If a baker makes fifty absolutely identical cookies, he must be using the same pastry mold for all of them. And that’s that!

  Then the video-Plato had looked into the camera and asked why all horses were the same. But they weren’t at all! On the contrary, Sophie thought no two horses were the same, just as no two people were the same.

  She was ready to give up on that one when she remembered what she had thought about the cookies. No one of them was exactly like any of the others. Some were a bit thicker than the others, and some were broken. But still, everyone could see that they were—in a way—“exactly the same.”

  What Plato was really asking was perhaps why a horse was always a horse, and not, for example, a cross between a horse and a pig. Because even though some horses were as brown as bears and others were as white as lambs, all horses had something in common. Sophie had yet to meet a horse with six or eight legs, for example.

  But surely Plato couldn’t believe that what made all horses alike was that they were made with the same mold?

  Then Plato had asked her a really difficult question. Does man have an immortal soul? That was something Sophie felt quite unqualified to answer. All she knew was that dead bodies were either cremated or buried, so there was no future for them. If man had an immortal soul, one would have to believe that a person consisted of two separate parts: a body that gets worn out after many years—and a soul that operates more or less independently of what happens to the body. Her grandmother had said once that she felt it was only her body that was old. Inside she had always been the same young girl.

  The thought of the “young girl” led Sophie to the last question: Are women and men equally sensible? She was not so sure about that. It depended on what Plato meant by sensible.

  Something the philosopher had said about Socrates came into her mind. Socrates had pointed out that everyone could understand philosophical truths if they just used their common sense. He had also said that a slave had the same common sense as a nobleman. Sophie was sure that he would also have said that women had the same common sense as men.

  While she sat thinking, there was a sudden rustling in the hedge, and the sound of something puffing and blowing like a steam engine. The next second, the golden Labrador slipped into the den. It had a large envelope in its mouth.

  “Hermes!” cried Sophie. “Drop it! Drop it!”

  The dog dropped the envelope in Sophie’s lap, and Sophie stretched out her hand to pat the dog’s head.

  “Good boy, Hermes!” she said.

  The dog lay down and allowed itself to be patted. But after a couple of minutes it got up and began to push its way back through the hedge the same way it had come in. Sophie followed with the brown envelope in her hand. She crawled through the dense thicket and was soon outside the garden.

  Hermes had already started to run toward the edge of the woods, and Sophie followed a few yards behind. Twice the dog turned around and growled, but Sophie was not to be deterred.

  This time she was determined to find the philosopher—even if it meant running all the way to Athens.

  The dog ran faster and suddenly turned off down a narrow path. Sophie chased him, but after a few minutes he turned and faced her, barking like a watchdog. Sophie still refused to give up, taking the opportunity to lessen the distance between them.

  Hermes turned and raced down the path. Sophie realized that she would never catch up with him. She stood quite still for what seemed like an eternity, listening to him running farther and farther away. Then all was silent.

  She sat down on a tree stump by a little clearing in the woods. She still had the brown envelope in her hand. She opened it, drew out several typewritten pages, and began to read:

  Plato’s Academy

  Thank you for the pleasant time we spent together, Sophie. In Athens, I mean. So now I have at least introduced myself. And since I have also introduced Plato, we might as well begin without further ado.

  Plato (428–347 B.C.) was twenty-nine years old when Socrates drank the hemlock. He had been a pupil of Socrates for some time and had followed his trial very closely. The fact that Athens could condemn its noblest citizen to death did more than make a profound impression on him. It was to shape the course of his entire philosophic endeavor.

  To Plato, the death of Socrates was a striking example of the conflict that can exist between society as it really is and the true or ideal society. Plato’s first deed as a philosopher was to publish Socrates’ Apology, an account of his plea to the large jury.

  As you will no doubt recall, Socrates never wrote anything down, although many of the pre-Socratics did. The problem is that hardly any of their written material remains. But in the case of Plato, we believe that all his principal works have been preserved. (In addition to Socrates’ Apology, Plato wrote a collection of Epistles and about twenty-five philosophical Dialogues.) That we have these works today is due not least to the fact that Plato set up his own school of philosophy in a grove not far from Athens, named after the legendary Greek hero Academus. The school was therefore known as the Academy. (Since then, many thousands of “academies” have been established all over the world. We still speak of “academics” and “academic subjects.”)

  The subjects taught at Plato’s Academy were philosophy, mathematics, and gymnastics—although perhaps “taught” is hardly the right word. Lively discourse was considered most important at Plato’s Academy. So it was not purely by chance that Plato’s writings took the form of dialogues.

  The Eternally True, Eternally Beautiful, and Eternally Good

  In the introduction to this course I mentioned that it could often be a good idea to ask what a particular philosopher’s project was. So now I ask: what were the problems Plato was concerned with?

  Briefly, we can establish that Plato was concerned with the relationship between what is eternal and immutable, on the one hand, and what “flows,” on the other. (Just like the pre-Socratics, in fact.) We’ve seen how the Sophists and Socrates turned their attention from questions of natural philosophy to problems related to man and society. And yet in one sense, even Socrates and the Sophists were preoccupied with the relationship between the eternal and immutable, and the “flowing.” They were interested in the problem as it related to human morals and society’s ideals or virtues. Very briefly, the Sophists thought that perceptions of what was right or wrong varied from one city-state to another, and from one generation to the next. So right and wrong was something that “flowed.” This was totally unacceptable to Socrates. He believed in the existence of eternal and absolute rules for what was right or wrong. By using our common sense we can all arrive at these immutable norms, since human reason is in fact eternal and immutable.

  Do you follow, Sophie? Then along comes Plato. He is concerned with both what is eternal and immutable in nature and what is eternal and immutable as regards morals and society. To Plato, these two problems were one and the same. He tried to grasp a “reality” that was eternal and immutable.

  And to be quite frank, that is precisely what we need philosophers for. We do not need them to choose a beauty queen or the day’s bargain in tomatoes. (This is why they are often unpopular!) Philosophers will try to ignore highly topical affairs and instead try to draw people’s attention to what is eternally “true,” eternally “beautiful,” and eternally “good.”

  We can thus begin to glimpse at least the outline of Plato’s philosophical project. But let’s take one thing at a time. We are attem
pting to understand an extraordinary mind, a mind that was to have a profound influence on all subsequent European philosophy.

  The World of Ideas

  Both Empedocles and Democritus had drawn attention to the fact that although in the natural world everything “flows,” there must nevertheless be “something” that never changes (the “four roots,” or the “atoms”). Plato agreed with the proposition as such—but in quite a different way.

  Plato believed that everything tangible in nature “flows.” So there are no “substances” that do not dissolve. Absolutely everything that belongs to the “material world” is made of a material that time can erode, but everything is made after a timeless “mold” or “form” that is eternal and immutable.

  You see? No, you don’t.

  Why are horses the same, Sophie? You probably don’t think they are at all. But there is something that all horses have in common, something that enables us to identify them as horses. A particular horse “flows,” naturally. It might be old and lame, and in time it will die. But the “form” of the horse is eternal and immutable.

  That which is eternal and immutable, to Plato, is therefore not a physical “basic substance,” as it was for Empedocles and Democritus. Plato’s conception was of eternal and immutable patterns, spiritual and abstract in their nature, that all things are fashioned after.

  Let me put it like this: The pre-Socratics had given a reasonably good explanation of natural change without having to presuppose that anything actually “changed.” In the midst of nature’s cycle there were some eternal and immutable smallest elements that did not dissolve, they thought. Fair enough, Sophie! But they had no reasonable explanation for how these “smallest elements” that were once building blocks in a horse could suddenly whirl together four or five hundred years later and fashion themselves into a completely new horse. Or an elephant or a crocodile, for that matter. Plato’s point was that Democritus’s atoms never fashioned themselves into an “eledile” or a “crocophant.” This was what set his philosophical reflections going.

  If you already understand what I am getting at, you may skip this next paragraph. But just in case, I will clarify: You have a box of Legos and you build a Lego horse. You then take it apart and put the blocks back in the box. You cannot expect to make a new horse just by shaking the box. How could Lego blocks of their own accord find each other and become a new horse again? No, you have to rebuild the horse, Sophie. And the reason you can do it is that you have a picture in your mind of what the horse looked like. The Lego horse is made from a model which remains unchanged from horse to horse.

  How did you do with the fifty identical cookies? Let us assume that you have dropped in from outer space and have never seen a baker before. You stumble into a tempting bakery—and there you catch sight of fifty identical gingerbread men on a shelf. I imagine you would wonder how they could be exactly alike. It might well be that one of them has an arm missing, another has lost a bit of its head, and a third has a funny bump on its stomach. But after careful thought, you would nevertheless conclude that all gingerbread men have something in common. Although none of them is perfect, you would suspect that they had a common origin. You would realize that all the cookies were formed in the same mold. And what is more, Sophie, you are now seized by the irresistible desire to see this mold. Because clearly, the mold itself must be utter perfection—and in a sense, more beautiful—in comparison with these crude copies.

  If you solved this problem all by yourself, you arrived at the philosophical solution in exactly the same way that Plato did.

  Like most philosophers, he “dropped in from outer space.” (He stood up on the very tip of one of the fine hairs of the rabbit’s fur.) He was astonished at the way all natural phenomena could be so alike, and he concluded that it had to be because there are a limited number of forms “behind” everything we see around us. Plato called these forms ideas. Behind every horse, pig, or human being, there is the “idea horse,” “idea pig,” and “idea human being.” (In the same way, the bakery we spoke of can have gingerbread men, gingerbread horses, and gingerbread pigs. Because every self-respecting bakery has more than one mold. But one mold is enough for each type of gingerbread cookie.)

  Plato came to the conclusion that there must be a reality behind the “material world.” He called this reality the world of ideas; it contained the eternal and immutable “patterns” behind the various phenomena we come across in nature. This remarkable view is known as Plato’s theory of ideas.

  True Knowledge

  I’m sure you’ve been following me, Sophie dear. But you may be wondering whether Plato was being serious. Did he really believe that forms like these actually existed in a completely different reality?

  He probably didn’t believe it literally in the same way for all his life, but in some of his dialogues that is certainly how he means to be understood. Let us try to follow his train of thought.

  A philosopher, as we have seen, tries to grasp something that is eternal and immutable. It would serve no purpose, for instance, to write a philosophic treatise on the existence of a particular soap bubble. Partly because one would hardly have time to study it in depth before it burst, and partly because it would probably be rather difficult to find a market for a philosophic treatise on something nobody has ever seen, and which only existed for five seconds.

  Plato believed that everything we see around us in nature, everything tangible, can be likened to a soap bubble, since nothing that exists in the world of the senses is lasting. We know, of course, that sooner or later every human being and every animal will die and decompose. Even a block of marble changes and gradually disintegrates. (The Acropolis is falling into ruin, Sophie! It is a scandal, but that’s the way it is.) Plato’s point is that we can never have true knowledge of anything that is in a constant state of change. We can only have opinions about things that belong to the world of the senses, tangible things. We can only have true knowledge of things that can be understood with our reason.

  All right, Sophie, I’ll explain it more clearly: a gingerbread man can be so lopsided after all that baking that it can be quite hard to see what it is meant to be. But having seen dozens of gingerbread men that were more or less successful, I can be pretty sure what the cookie mold was like. I can guess, even though I have never seen it. It might not even be an advantage to see the actual mold with my own eyes because we cannot always trust the evidence of our senses. The faculty of vision can vary from person to person. On the other hand, we can rely on what our reason tells us because that is the same for everyone.

  If you are sitting in a classroom with thirty other pupils, and the teacher asks the class which color of the rainbow is the prettiest, he will probably get a lot of different answers. But if he asks what 8 times 3 is, the whole class will—we hope—give the same answer. Because now reason is speaking and reason is, in a way, the direct opposite of “thinking so” or “feeling.” We could say that reason is eternal and universal precisely because it only expresses eternal and universal states.

  Plato found mathematics very absorbing because mathematical states never change. They are therefore states we can have true knowledge of. But here we need an example.

  Imagine you find a round pinecone out in the woods. Perhaps you say you “think” it looks completely round, whereas Joanna insists it is a bit flattened on one side. (Then you start arguing about it!) But you cannot have true knowledge of anything you can perceive with your eyes. On the other hand you can say with absolute certainty that the sum of the angles in a circle is 360 degrees. In this case you would be talking about an ideal circle which might not exist in the physical world but which you can clearly visualize. (You are dealing with the hidden gingerbread-man mold and not with the particular cookie on the kitchen table.)

  In short, we can only have inexact conceptions of things we perceive with our senses. But we can have true knowledge of things we understand with our reason. The sum of the angles in a triangle
will remain 180 degrees to the end of time. And similarly the “idea” horse will walk on four legs even if all the horses in the sensory world break a leg.

  An Immortal Soul

  As I explained, Plato believed that reality is divided into two regions.

  One region is the world of the senses, about which we can only have approximate or incomplete knowledge by using our five (approximate or incomplete) senses. In this sensory world, “everything flows” and nothing is permanent. Nothing in the sensory world is, there are only things that come to be and pass away.

  The other region is the world of ideas, about which we can have true knowledge by using our reason. This world of ideas cannot be perceived by the senses, but the ideas (or forms) are eternal and immutable.

  According to Plato, man is a dual creature. We have a body that “flows,” is inseparably bound to the world of the senses, and is subject to the same fate as everything else in this world—a soap bubble, for example. All our senses are based in the body and are consequently unreliable. But we also have an immortal soul—and this soul is the realm of reason. And not being physical, the soul can survey the world of ideas.

  But that’s not all, Sophie. IT’S NOT ALL!

  Plato also believed that the soul existed before it inhabited the body. (It was lying on a shelf in the closet with all the cookie molds.) But as soon as the soul wakes up in a human body, it has forgotten all the perfect ideas. Then something starts to happen. In fact, a wondrous process begins. As the human being discovers the various forms in the natural world, a vague recollection stirs his soul. He sees a horse—but an imperfect horse. (A gingerbread horse!) The sight of it is sufficient to awaken in the soul a faint recollection of the perfect “horse,” which the soul once saw in the world of ideas, and this stirs the soul with a yearning to return to its true realm. Plato calls this yearning eros—which means love. The soul, then, experiences a “longing to return to its true origin.” From now on, the body and the whole sensory world is experienced as imperfect and insignificant. The soul yearns to fly home on the wings of love to the world of ideas. It longs to be freed from the chains of the body.