Spontaneous Activity in Education by Maria Montessori (books for students to read txt) 📖

years before the discovery of the real cause of malaria, eucalyptus trees were planted in the belief that they would filter and disinfect the air. How was it that no one asked himself how it was possible that the plasmodia could enter the current of the blood from the air? What was the species of torpor which took possession of the intelligence of persons who had specialized in intellectual work? Here was a colossal sum of intelligence, without any individuality.

Until Ross discovered that birds are inoculated with malaria by a particular kind of mosquito.

And then, behold! we have at last the fundamental argument from which the knowledge of the truth sprang forth: "If birds are inoculated with malaria by mosquitoes, then the same thing must happen to man."

A simple argument, which sped like an arrow to the final discovery. Nothing seemed more incredible than the fact that in the malarial regions good air and fertile soil were to be found, that it was possible to breathe that air morning and evening and remain in perfect health, so long as one was not bitten by mosquitoes, and that the innumerable peasants who were wasted by malarial anemia would be saved and restored if they protected themselves by mosquito-netting. But after the first stupefaction, when men were convinced of the facts, there was an outcry from all the intelligent: How was it possible that we did not find it out before? Was not the cycle of the protozoa a well-known fact? Did not every one declare that the system of circulation was closed and impervious to micro-organisms? Was it not natural to think that only a blood-sucking insect could innoculate it?

How many students felt that glory had passed close to them, and were amazed and saddened by the knowledge, like the disciples of Emmäus, who said to each other when the Master disappeared before they recognized Him: "Did not our hearts burn within us when He spoke and expounded the Scriptures to us?"

Many must have thought: We worked so laboriously only to encumber our minds, and yet but one thing was needful: we should have been humble and simple, but independent. Instead, we filled our souls with darkness, and the ray that would have made us see, could not penetrate to us.

Let us take some grosser errors. As far back as the days of the Greek civilization it was known empirically that "stones can fall from the sky." Falls of aërolites are recorded in the most ancient Chinese chronicles. In the Middle Ages and in modern times intimations of the fall of aërolites have increased in frequency. Remarkable facts are indeed recorded in history in connection with similar phenomena: the meteorite which fell in 1492 served the Emperor Maximilian I of Germany as a pretext to excite Christendom to a war against the Turks. Nevertheless, the phenomenon was not admitted by men of science until the eighteenth century. One of the largest meteorites on record was that which fell near Agram in 1751; it weighed about forty kilogrammes, and was deposited and catalogued in the court mineralogical museum at Vienna. This is what Stütz, a German savant, had to say on the subject in 1790: "Those ignorant of natural history may believe that iron has fallen from the sky, and even educated men in Germany may have believed this in 1751, taking into account the universal ignorance then prevalent as to natural history and physics; but in our times it would be unpardonable to admit even the plausibility of such fables."

In the same year 1790, an aërolite weighing ten kilogrammes fell in Gascony. It was observed by a large number of persons, and an official report, signed by three hundred witnesses, was sent to the Academy of Paris. The reply was that "it had been very amusing to receive a legal document dealing with such an absurdity." [7]

When, a few years later, Chladni of Wittenberg, the founder of scientific acoustics, began to admit the phenomenon and to believe in the existence of aërolites, he was stigmatized as "a man who was ignorant of every law and who did not consider the damage he was doing in the moral world"; and one savant declared that "if he had himself seen iron fall from the sky at his own feet, he would not have believed it."

This was incredulity greater than that of St Thomas, who said: "Unless I can touch I will not believe." Here were pieces of iron weighing ten and forty kilogrammes, which could be touched, but the savant said: "Even if I touch them, I will not believe."

It is, therefore, not enough to see in order to believe; we must believe in order to see. It is faith which leads to sight, not sight which produces faith. When the blind man in the gospel uttered the anxious cry: "Make me to see," he asked for "faith," because he knew that it is possible to have eyes and not to see.

The fact of being insensible to evidence is little considered in psychology, much less is it taken into account in pedagogic laws. And yet many similar facts, though of an inferior psychological order, are notorious, as, for instance, that stimuli will appeal in vain to the senses, if the internal cooperation of attention be lacking. A thousand experiences of this kind enter in to make up the sum of common knowledge. It is not enough that an object should be before our eyes to make us see it; it is necessary that we should fix our attention upon it; an internal process, preparing us to receive the impression of the stimulus, is essential.

In a loftier and purely spiritual sphere something of the same kind takes place: an idea cannot enter triumphantly into the consciousness, if it is not accompanied by a preparation of faith. Lacking this, it may knock violently and brutally, with clamorous insistence, without being able to penetrate. It is necessary that the field of consciousness should be not only free, but "expectant." He who is bewildered by a chaos of ideas cannot accept a truth which arrives unexpectedly in the unprepared field.

This fact is not only analogous to other psychical facts of less importance, such as that of sensory perception in relation to attention; it is also analogous to the spiritual facts which are so well known in the field of religion. In vain will a fact, however remarkable, be explained or even demonstrated where there is no faith; it is not evidence but faith which opens the mind to truth. The very senses are useless as a medium if the internal activity does not open the doors to receive it. When the most striking miracles of Christ are related in the gospel, the narrative always concludes with: "And many of those who saw, believed." The parable of the invitation to the feast, to which those who were absorbed in their own affairs could not respond, seems to indicate a fact similar to this intellectual fact, that the "preoccupations" of complicated pre-existing ideas prevent the new and obvious truth that presents itself, from entering in. It is for this reason that we need the Precursor to make ready for the Messiah. And for this reason the Messiah, and also new ideas, are readily received by the "simple," by those who are not "laden with heavy preoccupations," but have preserved the natural characteristics of the spirit: to be pure and always "expectant."

When in 1628 Harvey discovered the circulation of the blood, physiology was almost unknown, and medicine was in the full tide of empiricism. It is well known that the Faculty of Medicine of Paris refused to believe in circulation, in spite of experiments, and that it persecuted and calumniated Harvey. "That which pleases me in my son," said Diafoirus, "and in which he follows my example, is, that he remains faithful to the opinions of our ancient teachers, and that he has always refused either to understand or to listen to the arguments and experiments of the pretended discoveries of our century, especially as regards the circulation of the blood."

The history of the discovery of germinative foliations in the embryonic development of vertebrates forms one of the most impressive of human documents. In 1700 the theory of pre-formation was vigorously upheld amongst the many ideas relating to generation: that is to say, it was believed that the germs contained little organisms completely formed which would eventually unfold and increase the parts of infinitesimal dimensions which were packed one within the other. This theory applied to every living creature, animal, vegetable, and human. It had led, by its own logical development, to the more far-reaching theory of "mutual inclusion"—that is, the doctrine that, as all living organisms are pre-formed, they must of necessity all have existed from the Creation, the one included, or wrapped up, in the other. All humanity must have lain in the ovaries of Eve. When in 1690 Leuwenhoek discovered spermatozoa by the aid of the microscope, the idea was evolved that each male cell contained a complete microscopic man, the homunculus; and then it was announced that not Eve, but Adam had contained all humanity within himself. Hence the two contradictory theories which in the eighteenth century kept their adherents sharply divided, the theories of the ovulists and those of the animalculists, and the dispute seemed to offer little hope of a possible decision. The names of famous scientists and philosophers were associated with these dissensions, those, for instance, of Spallanzani and of Liebnitz, who applied the principles of generation even to the soul. "Thus I should think," said Liebnitz, "that the souls which will one day become human souls, were present in the germ; that they have always existed as organized bodies in their progenitors from Adam onwards—that is, from the beginning of things." [8]

Haller, the ovulist, who had great authority as a physiologist, in a famous work, Elementa physiologiae, upheld the principle vigorously: "Nulla est epigenesis. Nulla in corpore animale pars ante aliam facta est et omnes simul creatae existunt" (nothing is created anew, no part of the human body is made before any other part, all are created at the same time). Making a calculation based on Biblical cosmogony of the number of human beings who were packed in the ovaries of Eve, he reckons them at two hundred thousand millions. Such was the state of thought when in 1759 K. F. Wolff published some of his studies in the work Theoria generationis, where he maintained, on the strength of experiments and microscopic observations made on the embryos of fowls, that new organisms are not pre-formed, but that they create themselves entirely, starting from nothing—that is, from a microscopic cell, simple as are all primitive cells. He described the simple process by which the real evolution of individuals is brought about: from a single cell, by division, two, and then four and then eight, are formed, and so on. And the cells thus germinated divide themselves into two or three tiny folds of "primitive folioles" from which all the organs are evolved, beginning with the alimentary canal. "This assertion," says Wolff "is not a fanciful theory; it is a description of facts collected by means of the most trustworthy observations."

All the scientists of his day knew and made use of the microscope; all might have taken an egg, that is, the embryo of a fowl, as a subject for observation; they were not indifferent to the problem of individual genesis, but in their case it had merely excited the most complex efforts of the imagination, and had divided them into factions, as adversaries in a battle of thought. Could any one of them attempt to experiment and observe save at