Outside in the valley again the sky is still limited by the bluffs on either side of the river, but they are closer together and closer to us than they were this morning. The valley is narrowing as we move toward the river's source.

We're also at a kind of beginning point in the things I'm discussing at which one can at last start to talk about Phædrus' break from the mainstream of rational thought in pursuit of the ghost of rationality itself.

There was a passage he had read and repeated to himself so many times it survives intact. It begins:

In the temple of science are many mansions -- and various indeed are they that dwell therein and the motives that have led them there.

Many take to science out of a joyful sense of superior intellectual power; science is their own special sport to which they look for vivid experience and the satisfaction of ambition; many others are to be found in the temple who have offered the products of their brains on this altar for purely utilitarian purposes. Were an angel of the Lord to come and drive all the people belonging to these two categories out of the temple, it would be noticeably emptier but there would still be some men of both present and past times left inside -- . If the types we have just expelled were the only types there were, the temple would never have existed any more than one can have a wood consisting of nothing but creepers -- those who have found favor with the angel -- are somewhat odd, uncommunicative, solitary fellows, really less like each other than the hosts of the rejected.

What has brought them to the temple -- no single answer will cover -- escape from everyday life, with its painful crudity and hopeless dreariness, from the fetters of one's own shifting desires. A finely tempered nature longs to escape from his noisy cramped surroundings into the silence of the high mountains where the eye ranges freely through the still pure air and fondly traces out the restful contours apparently built for eternity.

The passage is from a 1918 speech by a young German scientist named Albert Einstein.

Phædrus had finished his first year of University science at the age of fifteen. His field was already biochemistry, and he intended to specialize at the interface between the organic and inorganic worlds now known as molecular biology. He didn't think of this as a career for his own personal advancement. He was very young and it was a kind of noble idealistic goal.

The state of mind which enables a man to do work of this kind is akin to that of the religious worshipper or lover. The daily effort comes from no deliberate intention or program, but straight from the heart.

If Phædrus had entered science for ambitious or utilitarian purposes it might never have occurred to him to ask questions about the nature of a scientific hypothesis as an entity in itself. But he did ask them, and was unsatisfied with the answers.

The formation of hypotheses is the most mysterious of all the categories of scientific method. Where they come from, no one knows. A person is sitting somewhere, minding his own business, and suddenly...flash!...he understands something he didn't understand before. Until it's tested the hypothesis isn't truth. For the tests aren't its source. Its source is somewhere else.

Einstein had said:

Man tries to make for himself in the fashion that suits him best a simplified and intelligible picture of the world. He then tries to some extent to substitute this cosmos of his for the world of experience, and thus to overcome it -- .He makes this cosmos and its construction the pivot of his emotional life in order to find in this way the peace and serenity which he cannot find in the narrow whirlpool of personal experience -- .The supreme task -- is to arrive at those universal elementary laws from which the cosmos can be built up by pure deduction. There is no logical path to these laws; only intuition, resting on sympathetic understanding of experience, can reach them -- .

Intuition? Sympathy? Strange words for the origin of scientific knowledge.

A lesser scientist than Einstein might have said, "But scientific knowledge comes from nature. Nature provides the hypotheses." But Einstein understood that nature does not. Nature provides only experimental data.

A lesser mind might then have said, "Well then, man provides the hypotheses." But Einstein denied this too. "Nobody," he said, "who has really gone into the matter will deny that in practice the world of phenomena uniquely determines the theoretical system, in spite of the fact that there is no theoretical bridge between phenomena and their theoretical principles."

Phædrus' break occurred when, as a result of laboratory experience, he became interested in hypotheses as entities in themselves. He had noticed again and again in his lab work that what might seem

to be the hardest part of scientific work, thinking up the hypotheses, was invariably the easiest. The act of formally writing everything down precisely and clearly seemed to suggest them. As he was testing hypothesis number one by experimental method a flood of other hypotheses would come to mind, and as he was testing these, some more came to mind, and as he was testing these, still more came to mind until it became painfully evident that as he continued testing hypotheses and eliminating them or confirming them their number did not decrease. It actually increased as he went along.

At first he found it amusing. He coined a law intended to have the humor of a Parkinson's law that "The number of rational hypotheses that can explain any given phenomenon is infinite." It pleased him never to run out of hypotheses. Even when his experimental work seemed dead-end in every conceivable way, he knew that if he just sat down and muddled about it long enough, sure enough, another hypothesis would come along. And it always did. It was only months after he had coined the law that he began to have some doubts about the humor or benefits of it.

If true, that law is not a minor flaw in scientific reasoning. The law is completely nihilistic. It is a catastrophic logical disproof of the general validity of all scientific method!

If the purpose of scientific method is to select from among a multitude of hypotheses, and if the number of hypotheses grows faster than experimental method can handle, then it is clear that all hypotheses can never be tested. If all hypotheses cannot be tested, then the results of any experiment are inconclusive and the entire scientific method falls short of its goal of establishing proven knowledge.

About this Einstein had said, "Evolution has shown that at any given moment out of all conceivable constructions a single one has always proved itself absolutely superior to the rest," and let it go at that. But to Phædrus that was an incredibly weak answer. The phrase "at any given moment" really shook him. Did Einstein really mean to state that truth was a function of time? To state that would annihilate the most basic presumption of all science!

But there it was, the whole history of science, a clear story of continuously new and changing explanations of old facts. The time spans of permanence seemed completely random he could see no order in them. Some scientific truths seemed to last for centuries, others for less than a year. Scientific truth was not dogma, good for eternity, but a temporal quantitative entity that could be studied like anything else.

He studied scientific truths, then became upset even more by the apparent cause of their temporal condition. It looked as though the time spans of scientific truths are an inverse function of the intensity of scientific effort. Thus the scientific truths of the twentieth century seem to have a much shorter life-span than those of the last century because scientific activity is now much greater. If, in the next century, scientific activity increases tenfold, then the life expectancy of any scientific truth can be expected to drop to perhaps one-tenth as long as now. What shortens the life-span of the existing truth is the volume of hypotheses offered to replace it; the more the hypotheses, the shorter the time span of the truth. And what seems to be causing the number of hypotheses to grow in recent decades seems to be nothing other than scientific method itself. The more you look, the more you see. Instead of selecting one truth from a multitude you are increasing the multitude. What this means logically is that as you try to move toward unchanging truth through the application of scientific method, you actually do not move toward it at all. You move away from it! It is your application of scientific method that is causing it to change!

What Phædrus observed on a personal level was a phenomenon, profoundly characteristic of the history of science, which has been swept under the carpet for years. The predicted results of scientific enquiry and the actual results of scientific enquiry are diametrically opposed here, and no one seems to pay too much attention to the fact. The purpose of scientific method is to select a single truth from among many hypothetical truths. That, more than anything else, is what science is all about. But historically science has done exactly the opposite. Through multiplication upon multiplication of facts, information, theories and hypotheses, it is science itself that is leading mankind from single absolute truths to multiple, indeterminate, relative ones. The major producer of the social chaos, the indeterminacy of thought and values that rational knowledge is supposed to eliminate, is none other than science itself. And what Phædrus saw in the isolation of his own laboratory work years ago is now seen everywhere in the technological world today. Scientifically produced antiscience...chaos.

It's possible now to look back a little and see why it's important to talk about this person in relation to everything that's been said before concerning the division between classic and romantic realities and the irreconcilability of the two. Unlike the multitude of romantics who are disturbed about the chaotic changes science and technology force upon the human spirit, Phædrus, with his scientifically trained classic mind, was able to do more than just wring his hands with dismay, or run away, or condemn the whole situation broadside without offering any solutions.

As I've said, he did in the end offer a number of solutions, but the problem was so deep and so formidable and complex that no one really understood the gravity of what he was resolving, and so failed to understand or misunderstood what he said.

The cause of our current social crises, he would have said, is a genetic defect within the nature of reason itself. And until this genetic defect is cleared, the crises will continue. Our current modes of rationality are not moving society forward into a better world. They are taking it further and further from that better world. Since the Renaissance these modes have worked. As long as the need for food, clothing and shelter is dominant they will continue to work. But now that for huge masses of people these needs no longer overwhelm everything else, the whole structure of reason, handed down to us from ancient times, is no longer adequate. It begins to be seen for what it really is...emotionally hollow, esthetically meaningless and spiritually empty. That, today, is where it is at, and will continue to be at for a long time to come.

I've a vision of an angry continuing social crisis that no one really understands the depth of, let alone has solutions to. I see people like John and Sylvia living lost and alienated from the whole rational structure of civilized life, looking for solutions outside that structure, but finding none that are really satisfactory for long. And then I've a vision of Phædrus and his lone isolated abstractions in the laboratory...actually concerned with the same crisis but starting from another point, moving in the opposite direction...and what I'm trying to do here is put it all together. It's so big...that's why I seem to wander sometimes.

No one that Phædrus talked to seemed really concerned about this phenomenon that so baffled him. They seemed to say, "We know scientific method is valid, so why ask about it?"

Phædrus didn't understand this attitude, didn't know what to do about it, and because he wasn't a student of science for personal or utilitarian reasons, it just stopped him completely. It was as if he were contemplating that serene mountain landscape Einstein had described, and suddenly between the mountains had appeared a fissure, a gap of pure nothing. And slowly, and agonizingly, to explain this gap, he had to admit that the mountains, which had seemed built for eternity, might possibly be something else -- perhaps just figments of his own imagination. It stopped him.

And so Phædrus, who at the age of fifteen had finished his freshman year of science, was at the age of seventeen expelled from the University for failing grades. Immaturity and inattention to studies were given as official causes.

There was nothing anyone could have done about it; either to prevent it or correct it. The University couldn't have kept him on without abandoning standards completely.

In a stunned state Phædrus began a long series of lateral drifts that led him into a far orbit of the mind, but he eventually returned along a route we are now following, to the doors of the University itself. Tomorrow I'll try to start on that route.

At Laurel, in sight of the mountains at last, we stop for the night. The evening breeze is cool now. It comes down off the snow. Although the sun must have disappeared behind the mountains an hour ago, there's still good light in the sky from behind the range.