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• Title: Foreword: First Scientific Lecture-Course
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  • light of spiritual knowledge, and we who have received this
  • knowledge which has plunged most deeply into agnostic
  • dissatisfied with the ways of knowledge of the immediate
  • as nothing was held valid as “secure knowledge”
  • of spiritual knowledge touched me deeply. There were
  • of Darwinism, for he now felt that the driving forces
  • knowledge seemed to me to find expression in such men as
  • weight, constitute genuine knowledge. Men did not venture to
  • now to say what it is that works in the realm of life —
  • orientation of our faculties of knowledge towards the outer
  • the world no longer satisfied us now, we ought not to expect
  • gain insight into the mechanical domain. If we desire to know
  • our deeper, latent faculties of knowledge the same
  • to me, that in our striving after knowledge we should arrive
  • “There now exists a twofold
  • knowledge in its many aspects. Here I set forth, what in the
  • at the very least some knowledge of the anthroposophical
  • described in Anthroposophia; also a knowledge of
  • “to awaken in themselves the faculties of knowledge for
• Title: Prefatory Note: First Scientific Lecture-Course
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  • yet known in Goethe's time. I could only do justice to such
  • deep into the central issues of our life of knowledge
  • now prevails under the influence of the Egypto-Chaldean
• Title: First Lecture (First Scientific Lecture-Course)
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  • in many single experiences. Now we may say, this first important
  • force of heat or warmth, and so on. They speak of an unknown
  • the properties of this ether. Now you are well aware how very
  • way from what is known into some unknown realm. They scarcely ever
  • ask if it is really justified thus to proceed from the known to the
  • unknown. They scarcely trouble, for example, to consider if it is
  • Shaken though it now
  • Now there is also a
  • example are the three statements known as “Kepler's
  • Nature. Now I will emphasize at the very outset that the Goethean
  • “known” to the so-called “unknown”. He always
  • wants to stay within the sphere of what is known, nor in the first
  • scientific method is not to draw conclusions from the known to the
  • unknown; he will apply all thinking and all available methods to put
  • themselves express their secrets. He nowhere seeks to recur from the
  • so-called “known” to an “unknown” of any
  • to be fundamental, in place of the unknown entities or the
  • of Goetheanism, and on what now obtains in Science. It is remarkable:
  • studying Nature nowadays we do a lot of arithmetic — counting
  • to outer Nature. I mean Geometry, — all that is known by means
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• Title: Second Lecture (First Scientific Lecture-Course)
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  • Nature's processes in our own inner life, we now have to leap across
  • yesterday, present-day Physics (though now a little less sure in this
  • We will now try to set
  • well-known theorem. (We can go into it again another time so that
  • then revise what is necessary for the understanding of it. Now I will
  • Now if the force
  • let us denote the acceleration by g. Now what will interest
  • you most probably know; I only call it to your mind.) Multiply the
  • our reach, so that we can only get to know it, as it were, by staring
  • — no real physiology. It does not know the human being. You
  • just now, you realize the mass by weighing it. Mass makes its
  • presence known, to begin with, simply by this: by its ability to
  • something with your finger. Now we must ask ourselves: Is there
  • to how we live in Nature with our Will, — I will now try to
  • beam. We can thus weigh the object; we ascertain its weight. We now
  • get the loss of weight exactly. You know this is called the law of
  • only bound to downward tending matter. And now please think of this:
  • spiritual must now be conceived in so strong and robust a way as to
  • embrace also the knowledge of the physical. In the human being we
  • Nature. We need a knowledge with a strongly spiritual content,
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• Title: Third Lecture (First Scientific Lecture-Course)
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  • Now in the first place
  • light and colour, let us now begin again, but from the other end. I
  • often happens, one does not get down to a thing right away. Now
  • Goethe now said to
  • IIIa). If I now made a cylinder of light pass through this double
  • together, one from either end. But I could now move the screen
  • violet, I now get the outer edges red, with violet in the middle and
  • Now we might arrange
  • the angle smaller I should get it elsewhere. Now I can do the whole
  • than a double prism with its faces curved. The picture I now get is,
  • Now there is also
  • former instance but in cross-section as I am now drawing it (
  • And now, what happens to the light? As we said, it is widened out
  • edges. Think of it now. In the middle the light has less matter to go
  • the eye. I can now make the following experiment. Omitting the water
  • simple fact, but if I now begin explaining: there is a ray of light
  • Now let me fill the
  • mean measured. I now only refer to the main principle. To what can
  • air. Now my sighting line impinges on the water. The water does not
  • direction. And now the physicists go on to say a very curious thing.
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• Title: Fourth Lecture (First Scientific Lecture-Course)
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  • realistically and not so abstractly as in modern science. Please now
  • If we now take a
  • with the fundamental fact we have just now been ascertaining. Then,
  • cylinder of light — which, once again, is coming now towards
  • irradiated with light. For as I said just now, the light here
  • now they line up in formation. I have then dismembered the white
  • light into its constituents. Newton now imagined that to every colour
  • beg you now, pay very careful attention to the pure facts; we want to
  • region. Now I have here a second mirror, by which the light is
  • though the screen were being illumined from two different places. Now
  • Now let us try to
  • but now the other stream of light arrives here and encounters it,
  • IVe). But now all this is not at rest, — it is in constant
  • Now yonder physicist
  • here. Now the compressed air presses in its turn on the adjoining
  • expansion, known as waves, we imagine sound to spread. To begin with,
  • just now by the light itself. I was saying that we here get
  • adding things out of the blue, of which man has no knowledge. Of
  • Now I was saying just
  • now: when the one light goes through the other, or enters into any
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• Title: Fifth Lecture (First Scientific Lecture-Course)
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  • Figure IVf), towards the end of Lecture IV). Now we can also
  • And now we come to the
  • remarkable fact, which, although not unknown before, was brought to
  • We will now shew you,
  • remaining time — we shall now have to consider the relation of
  • the following experiment. You now see the complete spectrum projected
  • I shall now only have time for a for a few matters of principle.
  • illumination. And now there is a third stage: the body, as an outcome
  • you know, in dividing s, the distance which the mobile
  • Now the opinion
  • But now we set to work and think. We no longer envisage the quick
  • am now saying. With space and time we are one. Think of it well. We
  • intimately united, we learn to know and understand the real velocity.
  • Now once again: what I
  • Now in the course of
  • just now, we swim with our etheric body. How then do we relate
  • knowledge you have no alternative, but must say to yourselves: The
  • Assume now that in
  • mean now, a phenomenon that takes its course purely within the light.
  • and developed. What I have said just now for instance — this of
• Title: Sixth Lecture (First Scientific Lecture-Course)
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  • were going into certain matters of principle which I will now try to
  • I will now take my
  • the direction of the “ray” I am now drawing, the light
  • without the glass. Now this is said to be due to the light being
  • it would go on in this direction. But, they now say, the light is
  • incidence. Now it goes out again, — out of the glass. (All this
  • original direction. And now the eye, looking as it is from here, is
  • anything at all through the same denser medium, and we now try to
  • part is shifted too. But now, what is this “dark”? You
  • stronger light and less strong. The point is now to understand: How
  • “I know four men. One of them owns £25, another £50;
  • this example, for you know very well that the effect of being
  • a certain strength. Now we may ask: How does the positive filling of
  • Now we shall also need
  • just now, with our etheric body. This in effect — this
  • fact is simply that it draws nearer to the Earth. We see it now at
  • one place, now at another, now at a third and so on. If you then say
  • hither and thither, bombard them too. Now the total area of attack
  • Now what is at the
  • — to add all manner of unknown agencies and fancied energies,
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• Title: Seventh Lecture (First Scientific Lecture-Course)
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  • and darkness. What we now have to do is to observe as many
  • is illumined by both sources of light. Now I will colour the one
  • coloured glass, so that this one of the lights is now coloured
  • darkness before, you now see green. And now I darken the same
  • And now
  • And as an outcome — as with the cushion mentioned just now
  • screen as a whole now has a reddish colour.
  • objective. We cannot now provide for everyone to see it, but as the
  • will produce the phenomenon and you must now look through on to the
  • Now to begin
  • objective phenomenon of the green is called forth. Now side by side
  • Now there is
  • you know there is all the physical apparatus we were describing a
  • And now let us
  • ask yourself in all seriousness, “How shall I now compare the
  • Now let us go
  • Now we can also experience ourselves quite consciously in the airy
  • downward. Here now the cerebrospinal fluid is none other than a
  • Now bring
  • which have claimed all the knowledge of the soul and Spirit for
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• Title: Eighth Lecture (First Scientific Lecture-Course)
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  • Now scientists
  • their social connections. Now from this side there was always the
  • prevalent today. Historically it is of course well-known, but
  • Physics nowadays, is fundamentally a product of the said tendency,
  • main things we now have to discover is what happens when we
  • we are now about to demonstrate. You see this disc with its rows of
  • n times s. Now please recall what I said in an
  • describing as ‘sound’ or ‘tone’. If I now
  • condensations and attenuations; that unknown something within me
  • conclusion. What would become of it if I treated you, who are now
  • the outcome: You, all of you, now sitting here before me, — I
  • now been saying is indeed so obvious, so trite, that physicists and
  • been thinking. You were thinking it but did not say it; he now
  • Now we shall
  • piece of physical apparatus. Now we can of course equally well
  • ethereal, even as the larynx is for the air. And if I now reinsert
  • now been pointing out will lead us presently along a most important
  • path. We can have no real knowledge of these things if we relate
  • nowhere in these realms unless you apprehend what is real. For if
  • Now I admit
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• Title: Ninth Lecture (First Scientific Lecture-Course)
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  • scientific knowledge. Now to prepare for tomorrow, I must today
  • beginning no doubt with things that are well-known to you from your
  • You know the
  • attract small bodies such as bits of paper. You know too what
  • Now the
  • brings negative toward itself in some way. You know the phenomenon
  • coating thereby becomes electrified negatively. Then, as you know,
  • to discharge it with. I will now charge it. The charge is not yet
  • across the gap. Now you are also aware that this kind of
  • again, I am presumably still recalling what you already know
  • Now the fact
  • — so we may somehow express it. Now Hertz made this very
  • manner. Hertz could now say that electricity spreads out and the
  • taking effect once more — at a distance. You know how
  • warmth are in fact similar in some respects. Now they could think the
  • I refer now to
  • Now the
  • tubes, to get to know their conditions and reactions. Certain
  • interesting fact. Now that they had at last exposed it — if I
  • your knowledge of these things; I cannot go into them all from the
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• Title: Tenth Lecture (First Scientific Lecture-Course)
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  • I will now
  • very near relation to those of electricity and magnetism. Now the
  • Ohm's Law. Now one was able, so to speak, to get a glimpse of the
  • through the tube, we are now getting the so-called cathode rays. We
  • will now bring the shadow which is thus made visible into the field
  • of a magnet. I beg you to observe it now. You will find the shadow
  • I will now
  • Now I was
  • another thing emerges from these materials, known as radium etc. It
  • start from these facts, I now want to unfold a point of view which
  • geometrical and kinematical — calculable waves in an unknown
  • is just what Physics will require from now on. We have to enter the
  • phenomena themselves with human thinking. Now to this end certain
  • arithmetical thinking. Geometry, you know, was a very ancient
  • This way of thinking was now applied to the external phenomena
  • 180°. Of course you know this. Now then we have to give our
  • carry out the proof. Now in the whole of Euclid's Geometry there is
  • But if we now go further and begin applying to what goes on in the
  • And if you now apply these geometrical ideas (I will say
  • process of knowledge you are connecting, what arises from within
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