The Ethics, Benedictus de Spinoza [best reads txt] 📗
- Author: Benedictus de Spinoza
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contains in himself the essence of the given mind alone, but as
he, at the same time, contains the minds of other things. Again,
from any given idea some effect must necessarily follow (I. 36) ;
of this effect God is the adequate cause (III. Def. i.), not
inasmuch as he is infinite, but inasmuch as he is conceived as
affected by the given idea (II. ix.). But of that effect whereof
God is the cause, inasmuch as he is affected by an idea which is
adequate in a given mind, of that effect, I repeat, the mind in
question is the adequate cause (II. xi. Coroll.). Therefore our
mind, in so far as it has adequate ideas (III. Def. ii.), is in
certain cases necessarily active ; this was our first point.
Again, whatsoever necessarily follows from the idea which is
adequate in God, not by virtue of his possessing in himself the
mind of one man only, but by virtue of his containing, together
with the mind of that one man, the minds of other things also, of
such an effect (II. xi. Coroll.) the mind of the given man is not
an adequate, but only a partial cause ; thus (III. Def. ii.) the
mind, inasmuch as it has inadequate ideas, is in certain cases
necessarily passive ; this was our second point. Therefore our
mind, &c. Q.E.D.
Corollary.-Hence it follows that the mind is more or less
liable to be acted upon, in proportion as it possesses inadequate
ideas, and, contrariwise, is more or less active in proportion as
it possesses adequate ideas.
PROP. II. Body cannot determine mind to think, neither can mind
determine body to motion or rest or any state different from
these, if such there be.
Proof.-All modes of thinking have for their cause God, by
virtue of his being a thinking thing, and not by virtue of his
being displayed under any other attribute (II. vi.). That,
therefore, which determines the mind to thought is a mode of
thought, and not a mode of extension ; that is (II. Def. i.), it
is not body. This was our first point. Again, the motion and
rest of a body must arise from another body, which has also been
determined to a state of motion or rest by a third body, and
absolutely everything which takes place in a body must spring
from God, in so far as he is regarded as affected by some mode of
extension, and not by some mode of thought (II. vi.) ; that is,
it cannot spring from the mind, which is a mode of thought. This
was our second point. Therefore body cannot determine mind, &c.
Q.E.D.
Note.-This is made more clear by what was said in the note to
II. vii., namely, that mind and body are one and the same thing,
conceived first under the attribute of thought, secondly, under
the attribute of extension. Thus it follows that the order or
concatenation of things is identical, whether nature be conceived
under the one attribute or the other ; consequently the order of
states of activity and passivity in our body is simultaneous in
nature with the order of states of activity and passivity in the
mind. The same conclusion is evident from the manner in which we
proved II. xii.
Nevertheless, though such is the case, and though there be no
further room for doubt, I can scarcely believe, until the fact is
proved by experience, that men can be induced to consider the
question calmly and fairly, so firmly are they convinced that it
is merely at the bidding of the mind, that the body is set in
motion or at rest, or performs a variety of actions depending
solely on the mind’s will or the exercise of thought. However,
no one has hitherto laid down the limits to the powers of the
body, that is, no one has as yet been taught by experience what
the body can accomplish solely by the laws of nature, in so far
as she is regarded as extension. No one hitherto has gained such
an accurate knowledge of the bodily mechanism, that he can
explain all its functions ; nor need I call attention to the fact
that many actions are observed in the lower animals, which far
transcend human sagacity, and that somnambulists do many things
in their sleep, which they would not venture to do when awake :
these instances are enough to show, that the body can by the sole
laws of its nature do many things which the mind wonders at.
Again, no one knows how or by what means the mind moves the
body, nor how many various degrees of motion it can impart to the
body, nor how quickly it can move it. Thus, when men say that
this or that physical action has its origin in the mind, which
latter has dominion over the body, they are using words without
meaning, or are confessing in specious phraseology that they are
ignorant of the cause of the said action, and do not wonder at
it.
But, they will say, whether we know or do not know the means
whereby the mind acts on the body, we have, at any rate,
experience of the fact that unless the human mind is in a fit
state to think, the body remains inert. Moreover, we have
experience, that the mind alone can determine whether we speak or
are silent, and a variety of similar states which, accordingly,
we say depend on the mind’s decree. But, as to the first point,
I ask such objectors, whether experience does not also teach,
that if the body be inactive the mind is simultaneously unfitted
for thinking? For when the body is at rest in sleep, the mind
simultaneously is in a state of torpor also, and has no power of
thinking, such as it possesses when the body is awake. Again, I
think everyone’s experience will confirm the statement, that the
mind is not at all times equally fit for thinking on a given
subject, but according as the body is more or less fitted for
being stimulated by the image of this or that object, so also is
the mind more or less fitted for contemplating the said object.
But, it will be urged, it is impossible that solely from the
laws of nature considered as extended substance, we should be
able to deduce the causes of buildings, pictures, and things of
that kind, which are produced only by human art ; nor would the
human body, unless it were determined and led by the mind, be
capable of building a single temple. However, I have just
pointed out that the objectors cannot fix the limits of the
body’s power, or say what can be concluded from a consideration
of its sole nature, whereas they have experience of many things
being accomplished solely by the laws of nature, which they would
never have believed possible except under the direction of mind :
such are the actions performed by somnambulists while asleep, and
wondered at by their performers when awake. I would further call
attention to the mechanism of the human body, which far surpasses
in complexity all that has been put together by human art, not to
repeat what I have already shown, namely, that from nature, under
whatever attribute she be considered, infinite results follow.
As for the second objection, I submit that the world would be
much happier, if men were as fully able to keep silence as they
are to speak. Experience abundantly shows that men can govern
anything more easily than their tongues, and restrain anything
more easily than their appetites ; when it comes about that many
believe, that we are only free in respect to objects which we
moderately desire, because our desire for such can easily be
controlled by the thought of something else frequently
remembered, but that we are by no means free in respect to what
we seek with violent emotion, for our desire cannot then be
allayed with the remembrance of anything else. However, unless
such persons had proved by experience that we do many things
which we afterwards repent of, and again that we often, when
assailed by contrary emotions, see the better and follow the
worse, there would be nothing to prevent their believing that we
are free in all things. Thus an infant believes that of its own
free will it desires milk, an angry child believes that it freely
desires vengeance, a timid child believes that it freely desires
to run away ; further, a drunken man believes that he utters from
the free decision of his mind words which, when he is sober, he
would willingly have withheld : thus, too, a delirious man, a
garrulous woman, a child, and others of like complexion, believe
that they speak from the free decision of their mind, when they
are in reality unable to restrain their impulse to talk.
Experience teaches us no less clearly than reason, that men
believe themselves to be free, simply because they are conscious
of their actions, and unconscious of the causes whereby those
actions are determined ; and, further, it is plain that the
dictates of the mind are but another name for the appetites, and
therefore vary according to the varying state of the body.
Everyone shapes his actions according to his emotion, those who
are assailed by conflicting emotions know not what they wish ;
those who are not attacked by any emotion are readily swayed this
way or that. All these considerations clearly show that a mental
decision and a bodily appetite, or determined state, are
simultaneous, or rather are one and the same thing, which we call
decision, when it is regarded under and explained through the
attribute of thought, and a conditioned state, when it is
regarded under the attribute of extension, and deduced from the
laws of motion and rest. This will appear yet more plainly in
the sequel. For the present I wish to call attention to another
point, namely, that we cannot act by the decision of the mind,
unless we have a remembrance of having done so. For instance, we
cannot say a word without remembering that we have done so.
Again, it is not within the free power of the mind to remember or
forget a thing at will. Therefore the freedom of the mind must
in any case be limited to the power of uttering or not uttering
something which it remembers. But when we dream that we speak,
we believe that we speak from a free decision of the mind, yet we
do not speak, or, if we do, it is by a spontaneous motion of the
body. Again, we dream that we are concealing something, and we
seem to act from the same decision of the mind as that, whereby
we keep silence when awake concerning something we know. Lastly,
we dream that from the free decision of our mind we do something,
which we should not dare to do when awake.
Now I should like to know whether there be in the mind two
sorts of decisions, one sort illusive, and the other sort free?
If our folly does not carry us so far as this, we must
necessarily admit, that the decision of the mind, which is
believed to be free, is not distinguishable from the imagination
or memory, and is nothing more than the affirmation, which an
idea, by virtue of being an idea, necessarily involves (II.
xlix.). Wherefore these decisions of the mind arise in the mind
by the same necessity, as the ideas of things actually existing.
Therefore those who believe, that they speak or keep silence or
act in any way from the free decision of their mind, do but dream
with their eyes open.
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