The guide for the perplexed

by Moses Maimonides

The forces which according to this explanation are communicated by the spheres to this sublunary world are four in number, viz., (a) the force which effects the mixture and the composition of the elements, and which undoubtedly suffices to form the minerals; (b) the force which supplies every growing thing with its vegetative functions; (c) the force which gives to each living being its vitality, and (d) the force which endows rational beings with intellect. All this is effected through the action of light and darkness, which are regulated by the position and the motion of the spheres round the earth.

When for one instant the beating of the heart is interrupted, man dies, and all his motions and powers come to an end. In a like manner would the whole universe perish, and everything therein cease to exist if the spheres were to come to a standstill.

The living being as such is one through the action of its heart, although some parts of the body are devoid of motion and sensation, as, e.g., the bones, the cartilage, and similar parts. The same is the case with the entire universe; although it includes many beings without motion and without life, it is a single being living through the motion of the sphere, which may be compared to the heart of an animated being. You must therefore consider the entire globe as one individual being which is endowed with life, motion, and a soul. This mode of considering the universe is, as will be explained, indispensable, that is to say, it is very useful for demonstrating the unity of God; it also helps to elucidate the principle that He who is One has created only one being.

Again, it is impossible that any of the members of a human body should exist by themselves, not connected with the body, and at the same time should actually be organic parts of that body, that is to say, that the liver should exist by itself, the heart by itself, or the flesh by itself. In like manner, it is impossible that one part of the Universe should exist independently of the other parts in the existing order of things as here considered, [[116]]viz., that the fire should exist without the co-existence of the earth, or the earth without the heaven, or the heaven without the earth.

In man there is a certain force which unites the members of the body, controls them, and gives to each of them what it requires for the conservation of its condition, and for the repulsion of injury—the physicians distinctly call it the leading force in the body of the living being; sometimes they call it “nature.” The Universe likewise possesses a force which unites the several parts with each other, protects the species from destruction, maintains the individuals of each species as long as possible, and endows some individual beings with permanent existence. Whether this force operates through the medium of the sphere or otherwise remains an open question.

Again, in the body of each individual there are parts which are intended for a certain purpose, as the organs of nutrition for the preservation of the individual, the organs of generation for the preservation of the species, the hands and eyes for administering to certain wants, as to food, etc.; there are also parts which, in themselves, are not intended for any purpose, but are mere accessories and adjuncts to the constitution of the other parts. The peculiar constitution of the organs, indispensable for the conservation of their particular forms and for the performance of their primary functions, produces, whilst it serves its special purpose, according to the nature of the substance, other things, such as the hair and the complexion of the body. Being mere accessories, they are not formed according to a fixed rule; some are altogether absent in many individuals; and vary considerably in others. This is not the case with the organs of the body. You never find that the liver of one person is ten times larger than that of another person, but you may find a person without a beard, or without hair on certain parts of his body, or with a beard ten times longer than that of another man. Instances of this phenomenon, viz., great variation as regards hair and colour, are not rare. The same differences occur in the constitution of the Universe. Some species exist as an integral part of the whole system; these are constant and follow a fixed law; though they vary as far as their nature permits, this variation is insignificant in quantity and quality. Other species do not serve any purpose; they are the mere result of the general nature of transient things, as, e.g., the various insects which are generated in dunghills, the animals generated in rotten fruit, or in fetid liquids, and worms generated in the intestines, etc. In short, everything devoid of the power of generation belongs to this class. You will, therefore, find that these things do not follow a fixed law, although their entire absence is just as impossible as the absence of different complexions and of different kinds of hair amongst human beings.

In man there are substances the individual existence of which is permanent, and there are other substances which are only constant in the species not in the individuals, as, e.g., the four humours. The same is the case in the Universe; there are substances which are constant in individuals, such as the fifth element, which is constant in all its formations, and other substances which are constant in the species, as, e.g., the four elements and all that is composed of them.

The same forces which operate in the birth and the temporal existence of the human being operate also in his destruction and death. This truth [[117]]holds good with regard to this whole transient world. The causes of production are at the same time the causes of destruction. This may be illustrated by the following example. If the four forces which are present in every being sustained by food, viz., attraction, retention, digestion, and secretion, were, like intelligent forces, able to confine themselves to what is necessary, and to act at the proper time and within the proper limits, man would be exempt from those great sufferings and the numerous diseases [to which he is exposed]. Since, however, such is not the case, and since the forces perform their natural functions without thought and intelligence, without any consciousness of their action, they necessarily cause dangerous maladies and great pains, although they are the direct cause of the birth and the temporal existence of the human being. This fact is to be explained as follows: if the attractive force would absorb nothing but that which is absolutely beneficial, and nothing but the quantity which is required, man would be free from many such sufferings and disorders. But such is not the case; the attractive force absorbs any humour that comes within the range of its action, although such humour be ill-adapted in quality or in quantity. It is, therefore, natural that sometimes a humour is absorbed which is too warm, too cold, too thick, or too thin, or that too much humour is absorbed, and thus the veins are choked, obstruction and decay ensue, the quality of the humour is deteriorated, its quantities altered, diseases are originated, such as scurvy, leprosy, abscess, or a dangerous illness, such as cancer, elephantiasis, gangrene, and at last the organ or organs are destroyed. The same is the case with every one of the four forces, and with all existing beings. The same force that originates all things, and causes them to exist for a certain time, namely, the combination of the elements which are moved and penetrated by the forces of the heavenly spheres, that same cause becomes throughout the world a source of calamities, such as devastating rain, showers, snow-storms, hail, hurricanes, thunder, lightning, malaria, or other terrible catastrophes by which a place or many places or an entire country may be laid waste, such as landslips, earthquakes, meteoric showers and floods issuing forth from the seas and from the interior of the earth.

Bear in mind, however, that in all that we have noticed about the similarity between the Universe and the human being, nothing would warrant us to assert that man is a microcosm; for although the comparison in all its parts applies to the Universe and any living being in its normal state, we never heard that any ancient author called the ass or the horse a microcosm. This attribute has been given to man alone on account of his peculiar faculty of thinking, I mean the intellect, viz., the hylic intellect which appertains to no other living being. This may be explained as follows. An animal does not require for its sustenance any plan, thought or scheme; each animal moves and acts by its nature, eats as much as it can find of suitable things, it makes its resting-place wherever it happens to be, cohabits with any mate it meets while in heat in the periods of its sexual excitement. In this manner does each individual conserve itself for a certain time, and perpetuates the existence of its species without requiring for its maintenance the assistance or support of any of its fellow creatures; for all the things to which it has to attend it performs by itself. With man it is different; if an individual had a solitary existence, and were, like an animal, left without guidance, he [[118]]would soon perish, he would not endure even one day, unless it were by mere chance, unless he happened to find something upon which he might feed. For the food which man requires for his subsistence demands much work and preparation, which can only be accomplished by reflection and by plan; many vessels must be used, and many individuals, each in his peculiar work, must be employed. It is therefore necessary that one person should organize the work and direct men in such a manner that they should properly co-operate, and that they should assist each other. The protection from heat in summer and from cold in winter, and shelter from rain, snow, and wind, require in the same manner the preparation of many things, none of which can properly be done without design and thought. For this reason man has been endowed with intellectual faculties, which enable him to think, consider, and act, and by various labours to prepare and procure for himself food, dwelling and clothing, and to control every organ of his body, causing both the principal and the secondary organs to perform their respective functions. Consequently, if a man, being deprived of his intellectual faculties, only possessed vitality, he would in a short time be lost. The intellect is the highest of all faculties of living creatures; it is very difficult to comprehend, and its true character cannot be understood as easily as man’s other faculties.

There also exists in the Universe a certain force which controls the whole, which sets in motion the chief and principal parts, and gives them the motive power for governing the rest. Without that force, the existence of this sphere, with its principal and secondary parts, would be impossible. It is the source of the existence of the Universe in all its parts. That force is God; blessed be His name! It is on account of this force that man is called microcosm; for he likewise possesses a certain principle which governs all the forces of the body, and on account of this comparison God is called “the life of the Universe”; comp. “and he swore by the life of the Universe” (Dan. xii. 7).