You must consider, when reading this treatise, that mental perception, because connected with matter, is subject to conditions similar to those to which physical perception is subject. That is to say, if your eye looks around, you can perceive all that is within the range of your vision; if, however, you overstrain your eye, exerting it too much by attempting to see an object which is too distant for your eye, or to examine writings or engravings too small for your sight, and forcing it to obtain a correct perception of them, you will not only weaken your sight with regard to that special object, but also for those things which you otherwise are able to perceive: your eye will have become too weak to perceive what you were able to see before you exerted yourself and exceeded the limits of your vision.
The same is the case with the speculative faculties of one who devotes himself to the study of any science. If a person studies too much and exhausts his reflective powers, he will be confused, and will not be able to apprehend even that which had been within the power of his apprehension. For the powers of the body are all alike in this respect.
The mental perceptions are not exempt from a similar condition. If you admit the doubt, and do not persuade yourself to believe that there is a proof for things which cannot be demonstrated, or to try at once to reject and positively to deny an assertion the opposite of which has never been proved, or attempt to perceive things which are beyond your perception, then you have attained the highest degree of human perfection, then you are like R. Akibha, who “in peace entered [the study of these theological problems], and came out in peace.” If, on the other hand, you attempt to exceed the limit of your intellectual power, or at once to reject things as impossible which have never been proved to be impossible, or which are in fact possible, though their possibility be very remote, then you will be like Elisha Aḥer; you will not only fail to become perfect, but you will become exceedingly imperfect. Ideas founded on mere imagination will prevail over you, you will incline toward defects, and toward base and degraded habits, on account of the confusion which troubles the mind, and of the dimness of its light, just as weakness of sight causes invalids to see many kinds of unreal images, especially when they have looked for a long time at dazzling or at very minute objects.
Respecting this it has been said, “Hast thou found honey? eat so much as is sufficient for thee, lest thou be filled therewith, and vomit it” (Prov. xxv. 16). Our Sages also applied this verse to Elisha Aḥer. [[43]]
How excellent is this simile! In comparing knowledge to food (as we observed in chap. xxx.), the author of Proverbs mentions the sweetest food, namely, honey, which has the further property of irritating the stomach, and of causing sickness. He thus fully describes the nature of knowledge. Though great, excellent, noble and perfect, it is injurious if not kept within bounds or not guarded properly; it is like honey which gives nourishment and is pleasant, when eaten in moderation, but is totally thrown away when eaten immoderately. Therefore, it is not said “lest thou be filled and loathe it,” but “lest thou vomit it.” The same idea is expressed in the words, “It is not good to eat much honey” (Prov. xxv. 27); and in the words, “Neither make thyself over-wise; why shouldst thou destroy thyself?” (Eccles. vii. 16); comp. “Keep thy foot when thou goest to the house of God” (ibid. v. 1). The same subject is alluded to in the words of David, “Neither do I exercise myself in great matters, or in things too high for me” (Ps. cxxxi. 2), and in the sayings of our Sages: “Do not inquire into things which are too difficult for thee, do not search what is hidden from thee; study what you are allowed to study, and do not occupy thyself with mysteries.” They meant to say, Let thy mind only attempt things which are within human perception; for the study of things which lie beyond man’s comprehension is extremely injurious, as has been already stated. This lesson is also contained in the Talmudical passage, which begins, “He who considers four things,” etc., and concludes, “He who does not regard the honour of his Creator”; here also is given the advice which we have already mentioned, viz., that man should not rashly engage in speculation with false conceptions, and when he is in doubt about anything, or unable to find a proof for the object of his inquiry, he must not at once abandon, reject and deny it; he must modestly keep back, and from regard to the honour of his Creator, hesitate [from uttering an opinion] and pause. This has already been explained.
It was not the object of the Prophets and our Sages in these utterances to close the gate of investigation entirely, and to prevent the mind from comprehending what is within its reach, as is imagined by simple and idle people, whom it suits better to put forth their ignorance and incapacity as wisdom and perfection, and to regard the distinction and wisdom of others as irreligion and imperfection, thus taking darkness for light and light for darkness. The whole object of the Prophets and the Sages was to declare that a limit is set to human reason where it must halt. Do not criticise the words used in this chapter and in others in reference to the mind, for we only intended to give some idea of the subject in view, not to describe the essence of the intellect; for other chapters have been dedicated to this subject.
CHAPTER XXXIII
You must know that it is very injurious to begin with this branch of philosophy, viz., Metaphysics; or to explain [at first] the sense of the similes occurring in prophecies, and interpret the metaphors which are employed in historical accounts and which abound in the writings of the Prophets. On the contrary, it is necessary to initiate the young and to instruct the less intelligent according to their comprehension; those who [[44]]appear to be talented and to have capacity for the higher method of study, i.e., that based on proof and on true logical argument, should be gradually advanced towards perfection, either by tuition or by self-instruction. He, however, who begins with Metaphysics, will not only become confused in matters of religion, but will fall into complete infidelity. I compare such a person to an infant fed with wheaten bread, meat and wine; it will undoubtedly die, not because such food is naturally unfit for the human body, but because of the weakness of the child, who is unable to digest the food, and cannot derive benefit from it. The same is the case with the true principles of science. They were presented in enigmas, clad in riddles, and taught by all wise men in the most mysterious way that could be devised, not because they contain some secret evil, or are contrary to the fundamental principles of the Law (as fools think who are only philosophers in their own eyes), but because of the incapacity of man to comprehend them at the beginning of his studies: only slight allusions have been made to them to serve for the guidance of those who are capable of understanding them. These sciences were, therefore, called Mysteries (sodoth), and Secrets of the Law (sitre torah), as we shall explain.
This also is the reason why “the Torah speaks the language of man,” as we have explained, for it is the object of the Torah to serve as a guide for the instruction of the young, of women, and of the common people; and as all of them are incapable to comprehend the true sense of the words, tradition was considered sufficient to convey all truths which were to be established; and as regards ideals, only such remarks were made as would lead towards a knowledge of their existence, though not to a comprehension of their true essence. When a man attains to perfection, and arrives at a knowledge of the “Secrets of the Law,” either through the assistance of a teacher or by self-instruction, being led by the understanding of one part to the study of the other, he will belong to those who faithfully believe in the true principles, either because of conclusive proof, where proof is possible, or by forcible arguments, where argument is admissible; he will have a true notion of those things which he previously received in similes and metaphors, and he will fully understand their sense. We have frequently mentioned in this treatise the principle of our Sages “not to discuss the Maʻaseh Mercabah even in the presence of one pupil, except he be wise and intelligent; and then only the headings of the chapters are to be given to him.” We must, therefore, begin with teaching these subjects according to the capacity of the pupil, and on two conditions, first, that he be wise, i.e., that he should have successfully gone through the preliminary studies, and secondly that he be intelligent, talented, clear-headed, and of quick perception, that is, “have a mind of his own” (mebin middaʻato), as our Sages termed it.