I don't feel I have changed at all since then."
"You haven't. Nothing changes. You have just developed, gotten older..."
"Mm ... that was a very grownup thing to say. I just think it's all happened so very quickly."
Aristotle...a meticulous organizer who wanted to clarify our concepts
While her mother was taking her afternoon nap, Sophie went down to the den. She had put a lump of sugar in the pink envelope and written "To Alberto" on the outside.
There was no new letter, but after a few minutes Sophie heard the dog approaching.
"Hermes!" she called, and the next moment he had pushed his way into the den with a big brown envelope in his mouth.
"Good boy!" Sophie put her arm around the dog, which was snorting and snuffling like a walrus. She took the pink envelope with the lump of sugar and put it in the dog's mouth. He crawled through the hedge and made off into the woods again.
Sophie opened the big envelope apprehensively, wondering whether it would contain anything about the cabin and the boat.
It contained the usual typed pages held together with a paperclip. But there was also a loose page inside. On it was written:
Dear Miss Sleuth, or, to be more exact, Miss Burglar. The case has already been handed over to the police.
Not really. No, I'm not angry. If you are just as curious when it comes to discovering answers to the riddles of philosophy, I'd say your adventure was very promising. It's just a little annoying that I'll have to move now. Still, I have no one to blame but myself, I suppose. I might have known you were a person who would always want to get to the bottom of things.
Greetings, Alberto
Sophie was relieved. So he was not angry after all. But why would he have to move?
She took the papers and ran up to her room. It would be prudent to be in the house when her mother woke up. Lying comfortably on her bed, she began to read about Aristotle.
PHILOSOPHER AND SCIENTIST
Dear Sophie: You were probably astonished by Plato's theory or ideas. You are not the only one! I do not know whether you swallowed the whole thing--hook, line, and sinker--or whether you had any critical comments. But if you did have, you can be sure that the self-same criticism was raised by Aristotle (384-322 B.C.), who was a pupil at Plato's Academy for almost twenty years.
Aristotle was not a native of Athens. He was born in Macedonia and came to Plato's Academy when Plato was 61. Aristotle's father was a respected physician-- and therefore a scientist. This background already tells us something about Aristotle's philosophic project. What he was most interested in was nature study. He was not only the last of the great Greek philosophers, he was Europe's first great biologist.
Taking it to extremes, we could say that Plato was so engrossed in his eternal forms, or "ideas," that he took very little notice of the changes in nature. Aristotle, on the other hand, was preoccupied with just these changes--or with what we nowadays describe as natural processes.
To exaggerate even more, we could say that Plato turned his back on the sensory world and shut his eyes to everything we see around us. (He wanted to escape from the cave and look out over the eternal world of ideas!) Aristotle did the opposite: he got down on all fours and studied frogs and fish, anemones and poppies.
While Plato used his reason, Aristotle used his senses as well.
We find decisive differences between the two, not least in their writing. Plato was a poet and mythologist; Aristotle's writings were as dry and precise as an encyclopedia. On the other hand, much of what he wrote was based on up-to-the-minute field studies.
Records from antiquity refer to 170 titles supposedly written by Aristotle. Of these, 47 are preserved. These are not complete books; they consist largely of lecture notes. In his time, philosophy was still mainly an oral activity.
The significance of Aristotle in European culture is due not least to the fact that he created the terminology that scientists use today. He was the great organizer who founded and classified the various sciences.
Since Aristotle wrote on all the sciences, I will limit myself to some of the most important areas. Now that I have told you such a lot about Plato, you must start by hearing how Aristotle refuted Plato's theory of ideas. Later we will look at the way he formulated his own natural philosophy, since it was Aristotle who summed up what the natural philosophers before him had said. We'll see how he categorizes our concepts and founds the discipline of Logic as a science. And finally I'll tell you a little about Aristotle's view of man and society.
No Innate Ideas
Like the philosophers before him, Plato wanted to find the eternal and immutable in the midst of all change. So he found the perfect ideas that were superior to the sensory world. Plato furthermore held that ideas were more real than all the phenomena of nature. First came the idea "horse," then came all the sensory world's horses trotting along like shadows on a cave wall. The idea "chicken" came before both the chicken and the egg.
Aristotle thought Plato had turned the whole thing upside down. He agreed with his teacher that the particular horse "flows" and that no horse lives forever. He also agreed that the actual form of the horse is eternal and immutable. But the "idea" horse was simply a concept that we humans had formed after seeing a certain number of horses. The "idea" or "form" horse thus had no existence of its own. To Aristotle, the "idea" or the "form" horse was made up of the horse's characteristics--which define what we today call the horse species.
To be more precise: by "form" horse, Aristotle meant that which is common to all horses. And here the metaphor of the gingerbread mold does not hold up because the mold exists independently of the particular gingerbread cookies. Aristotle did not believe in the existence of any such molds or forms that, as it were, lay on their own shelf beyond the natural world. On the contrary, to Aristotle the "forms" were in the things, because they were the particular characteristics of these things.
So Aristotle disagreed with Plato that the "idea" chicken came before the chicken. What Aristotle called the "form" chicken is present in every single chicken as the chicken's particular set characteristics--for one, that it lays eggs. The real chicken and the "form" chicken are thus just as inseparable as body and soul.
And that is really the essence of Aristotle's criticism of Plato's theory of ideas. But you should not ignore the fact that this was a dramatic turn of thought. The highest degree of reality, in Plato's theory, was that which we think with our reason. It was equally apparent to Aristotle that the highest degree of reality is that which we perceive with our senses. Plato thought that all the things we see in the natural world were purely reflections of things that existed in the higher reality of the world of ideas--and thereby in the human soul. Aristotle thought the opposite: things that are in the human soul were purely reflections of natural objects. So nature is the real world. According to Aristotle, Plato was trapped in a mythical world picture in which the human imagination was confused with the real world.
Aristotle pointed out that nothing exists in consciousness that has not first been experienced by the senses. Plato would have said that there is nothing in the natural world that has not first existed in the world of ideas. Aristotle held that Plato was thus "doubling the number of things." He explained a horse by referring to the "idea" horse. But what kind of an explanation is that, Sophie?