Philosophical Letters: or, modest Reflections upon some Opinions in Natural Philosophy. Duchess of Margaret Cavendish Newcastle
Dreams,[1] seemeth to me in some part very rational and probable, in some part not; For when he sayes, that Dreams are onely Imaginations of them that sleep, which imaginations have been before either totally or by parcels in the Sense; and that the organs of Sense, as the Brain and the Nerves, being benumb'd in sleep, as not easily to be moved by external objects, those Imaginations proceed onely from the agitation of the inward parts of mans body, which for the connexion they have with the Brain, and other organs, when they be distemper'd, do keep the same in motion, whereby the Imaginations there formerly made, appear as if a man were waking; This seems to my Reason not very probable: For, first, Dreams are not absolutely Imaginations, except we do call all Motions and Actions of the Sensitive and Rational Matter, Imaginations. Neither is it necessary, that all Imaginations must have been before either totally or by parcels in the Sense; neither is there any benumbing of the organs of Sense in sleep. But Dreams, according to my opinion, are made by the Sensitive and Rational Corporeal Motions, by figuring several objects, as awake; onely the difference is, that the Sensitive motions in Dreams work by rote and on the inside of the Sensitive organs, when as awake they work according to the patterns of outward objects, and exteriously or on the outside of the sensitive Organs, so that sleep or dreams are nothing else but an alteration of motions, from moving exteriously to move interiously, and from working after a Pattern to work by rote: I do not say that the body is without all exterior motions, when asleep, as breathing and beating of the Pulse (although these motions are rather interior then exterior,) but that onely the sensitive organs are outwardly shut, so as not to receive the patterns of outward Objects, nevertheless the sensitive Motions do not cease from moving inwardly; or on the inside of the sensitive Organs; But the rational matter doth often, as awake, so asleep or in dreams, make such figures, as the sensitive did never make either from outward objects, or of its own accord; for the sensitive hath sometimes liberty to work without Objects, but the Rational much more, which is not bound either to the patterns of Exterior objects, or of the sensitive voluntary Figures. Wherefore it is not divers distempers, as your Authour sayes, that cause different Dreams, or Gold, or Heat; neither are Dreams the reverse of our waking Imaginations, nor all the Figures in Dreams are not made with their heels up, and their heads downwards, though some are; but this error or irregularity proceeds from want of exterior Objects or Patterns, and by reason the sensitive Motions work by rote; neither are the Motions reverse, because they work inwardly asleep, and outwardly awake, for Mad-men awake see several Figures without Objects. In short, sleeping and waking, is somewhat after that manner, when men are called either out of their doors, or stay within their houses; or like a Ship, where the Mariners work all under hatches, whereof you will find more in my Philosophical Opinions; and so taking my leave, I rest,
Madam,
Your faithful Friend
and Servant.
[1] Leviathan, Part. 1. c. 2.
VIII.
MADAM,
Your Authour going on in his discourse of Imagination, says,[1] That, as we have no Imagination, whereof we have not formerly had sense, in whole or in parts; so we have not Transition from one Imagination to another, whereof we never had the like before in our senses. To which my answer is in short, that the Rational part of Matter in One composed figure, as in Man, or the like Creature, may make such figures, as the senses did never make in that composed Figure or Creature; And though your Authour reproves those that say,[2] Imaginations rise of themselves; yet, if the self-moving part of Matter, which I call Rational, makes Imaginations, they must needs rise of themselves; for the Rational part of matter being free and self-moving, depends upon nothing, neither Sense nor Object, I mean, so, as not to be able to work without them. Next, when your Author, defining Understanding, says that it is nothing else, but[3] an Imagination raised by words or other voluntary signs, My Answer is, that Understanding, and so Words and Signs are made by self-moving Matter, that is, Sense and Reason, and not Sense and Reason by Words and Signs; wherefore Thoughts are not like[4] Water upon a plain Table, which is drawn and guided by the finger this or that way, for every Part of self-moving matter is not alwayes forced, perswaded or directed, for if all the Parts of Sense and Reason were ruled by force or perswasion, not any wounded Creature would fail to be healed, or any disease to be cured by outward Applications, for outward Applications to Wounds and Diseases might have more force, then any Object to the Eye: But though there is great affinity and sympathy between parts, yet there is also great difference and antipathy betwixt them, which is the cause that many objects cannot with all their endeavours work such effects upon the Interiour parts, although they are closely press'd, for Impressions of objects do not always affect those parts they press. Wherefore, I am not of your Author's opinion, that all Parts of Matter press one another; It is true, Madam, there cannot be any part single, but yet this doth not prove, that parts must needs press each other: And as for his Train of Thoughts, I must confess, that Thoughts for the most part are made orderly, but yet they do not follow each other like Geese, for surely, man has sometimes very different thoughts; as for Example, a man sometime is very sad for the death of his Friend, and thinks of his own death, and immediately thinks of a wanton Mistress, which later thought, surely, the thought of Death did not draw in; wherefore, though some thought may be the Ring-leader of others, yet many are made without leaders. Again, your Author in his description of the Mind sayes, that the discourse of the mind, when it is govern'd by design, is nothing but seeking, or the Faculty of Invention; a hunting out of the Causes of some Effects, present or past; or of the Effects of some present or past Cause. Sometimes a man seeks what he has lost, and from that Place and Time wherein he misses it, his mind runs back from place to place, and time to time, to find where and when he had it, that is to say, to find some certain and limited Time and Place, in which to begin a method of Seeking. And from thence his thoughts run over the same places and times to find what action or other occasion might make him lose it. This we call Remembrance or calling to mind. Sometimes a man knows a place determinate, within the compass whereof he is to seek, and then his thoughts run over all the Parts thereof in the same manner as one would sweep a room to find a Jewel, or as a Spaniel ranges the field till he find a sent; or as a Man should run over the Alphabet to start a Rime. Thus far your Author: In which discourse I do not perceive that he defineth what the Mind is, but I say, that if, according to his opinion, nothing moves it self, but one thing moves another, then the Mind must do nothing, but move backward and forward, nay, onely forward, and if all actions were thrusting or pressing of parts, it would be like a crowd of People, and there would be but little or no motion, for the crowd would make a stoppage, like water in a glass, the mouth of the Glass being turned downwards, no water can pass out, by reason the numerous drops are so closely press'd, as they cannot move exteriously. Next, I cannot conceive how the Mind can run back either to Time or Place, for as for Place, the mind is inclosed in the body, and the running about in the parts of the body or brain will not inform it of an Exterior place or object; besides, objects being the cause of the minds motion, it must return to its Cause, and so move until it come to the object, that moved it first, so that the mind must run out of the body to that object, which moved it to such a Thought, although that object were removed out of the World (as the phrase is:) But for the mind to move backward, to Time past, is more then it can do; Wherefore in my opinion, Remembrance, or the like, is onely a repetition of such Figures as were like to the Objects; and for Thoughts in Particular, they are several figures, made by the mind, which is the Rational Part of matter, in its own substance, either voluntarily, or by imitation, whereof you may see more in my Book of Philosophical Opinions. Hence I conclude, that Prudence is nothing else, but a comparing of Figures to Figures, and of the several actions of those