The teaching of Buddhist physiology is as follows:--

Where the eye and forms encounter one another, and the antecedent

conditions are such that each acts upon the other, there arises

visual consciousness. Where the ear and sounds encounter one another,

there arises aural consciousness. Where nose and odours encounter

one another, there arises olfactory consciousness. Where tongue and

flavours encounter one another, there arises gustatory consciousness.

Where bodies and objects come in contact with one another, there arises

tactile consciousness. Where thinking and things (known abstractly)

encounter one another, there arises thought-consciousness.

“If the inward eye is undamaged, and external objects do not come

within the range of vision, and (as a consequence) no corresponding

interaction takes place, then a corresponding moment of consciousness

does not result. If the inward eye is undamaged, and external

objects come within the range of vision, and (nevertheless) no

corresponding interaction takes place, then also a corresponding

moment of consciousness does not result. If, however, the inward eye

is undamaged, and external objects come within the range of vision,

and the corresponding interaction takes place, then there results the

corresponding moment of consciousness.”[23]

Thus my entire individuality, the totality of individual experience is

a _becoming conscious_ at every moment of existence. Consciousness is

a Sankhāra, like all else, distinguished therefrom only in this, that

in it Kamma itself becomes perceptible to sense.

Were teleology and mechanistics to come before the Buddha and say,

“Decide thou! Which of us two is right? Is the eye born of seeing,

or is seeing born of the eye? Is the brain born of thinking, or is

thinking born of the brain?” the Buddha would reply with a smile:--

“My young friends, you are both right because you are both wrong.

Your question is not correctly put. There are no such things as ‘eye’

and ‘brain’ in the sense in which you use the words. There is only an

_I_-process, that unfolds itself by way of certain differentiations

which in themselves run their course at a pace sufficiently slow to

justify such separate verbal designations as the ‘eye,’ the ‘brain,’

and so forth. Your question, ‘Is the eye born of seeing, or is seeing

born of the eye? Is the brain born of thinking, or is thinking born

of the brain?’ would have sense and meaning only if the eye and the

brain were in themselves organs all finished and complete, to which in

that case a specific function also would have to correspond. All this,

however, is nothing but a phase, nothing but the form of development

assumed by a single process. It is not the eye that sees: _you_ see.

The eye is neither born of seeing, nor yet is seeing born of the eye;

the eye is simply _the form under which seeing exists_. You do not

see _with_ the eye but in virtue of the fact of eye-evolution, the

same as you think in virtue of the fact of brain-evolution, which is

only another way of saying that you are the form assumed by individual

energies.”

Here the physiologist breaks in: “That consciousness has its seat in

certain regions of the cerebral cortex may be proven by experiments

on animals.” But this is a conclusion as grossly mistaken as that of

the physicist when he imagines he can follow up energy throughout all

its ramifications.[24] What can be got at by experimental methods is

merely negative phenomena, and these furnish no warrant for coming to

conclusions as to the seat of consciousness. If I cut through the wire

connected with an electric light at any point at all in the circuit,

the negative phenomenon “darkness” assuredly supervenes; but to say on

that account, “The point of section must be the seat of the electric

energy; here is ocular demonstration,” would be sheer foolishness. Yet

the physiologist is guilty of just such foolishness, and at its behest

does not stick at the perpetration of all those cruelties such as are

scarcely to be avoided in experiments upon animals. If only the time

would come when true ideas about life would take possession of science,

the laboratories of physiologists would no longer be those places where

every day sacrifice is made to error as in the temples of blood-stained

idols.

All these researches on the subject of the seat of consciousness are

only possible where one is working with empty concepts. If one thinks

in terms of actuality consciousness is just that with regard to which

a reading, a working hypothesis of an inductive nature, is utterly

impossible; for here the reading is precisely the form assumed by the

consciousness, by that which is to do the reading, by the problem

itself, and thus itself again requires a reading, and so on _ad

infinitum_.

But there is another point involved in this problem of “consciousness”

which, so far as I know, has never been taken account of, and yet is of

the utmost significance.

As the Darwinian idea does not embrace in its purview the case

of hybrid formations--it does not react upon it at all--so the

scientific mode of envisaging things does not take in the case of the

physiological negative phenomena of consciousness, does not at all

react upon it. With the apparatus of science there is no possibility

whatever of getting at such facts as “faith,” “illusion,” “error,”

“forgetting.” Science requires something sensible and objective,

something so constituted that I can rank it along with other things.

In no respect, however, are any of these negative phenomena objective

things. Here no possible point of entry offers for science with its

instrument, induction.

I may indeed _read_ consciousness under the figure of associative

occurrences, but only in the form of recollection. Applied to the

corresponding dissociative event, forgetting, this explanation is

as impossible as that a molecular mixture which has once come to

equilibrium within itself should again spontaneously return to

dissolution, to dissociation. As the natural adjustment of differences

of molecular tension may be explained or read as a fall, so in its

associative activities consciousness may be explained or read as a

fall, but never so in its dissociative activities. This, however,

involves the utter worthlessness of the former explanation; for every

mixture, every association, presupposes separation, dissociation, and,

called upon to indicate the _essence_ of consciousness, what I should

point to is not so much the associative as the dissociative, not so

much recollection, conjunction, as forgetting, disjunction. Once the

stone is raised from the earth’s surface its return fall forthwith

ensues. But it is the separation from the earth’s surface for which

effective causes must be found. In like manner, it is dissociation,

forgetting, that really demands elucidation; association, recollection

can as easily be read mechanistically as the fall of a stone once it

has been raised. Dissociation is the physiological miracle, in presence

of which science stands altogether helpless.

The like holds good of faith, illusion, error. The purely mechanistic

conception of things, the view which regards the _I_-process simply

as an instance of the phenomenon of the compensation of tensile

differences, can never be accommodated to the possibility of such

things as faith, illusion, and error. But a similar impossibility also

exists for the teleological apprehension of the world. How should a

“force” ever acquire the faculty of deceiving itself or of falling

into error? To a compensation-phenomenon pure and simple, as to God,

illusion and error are wholly unattainable potentialities; they belong

to mankind alone, to the man whom the Buddha points out to us.

If I am nothing but an unceasing reaction to the outer world, if I

constantly adapt myself to things and things adapt themselves to me,

not as a mere adjustment but in virtue of specific energies, only then

are faith, illusion, error, and all other negative phenomena equally

possible with all positive phenomena. Beginningless process furnishes

the possibility of both.

Such things as actual illusion, actual error, science may nowise

recognize, for in so doing she would be recognizing something for

which there is absolutely no room in her cosmogony. One would thereby

introduce functions for which one could furnish no organized basis.

Only in the cosmogony of the Buddha, only in the concept of individual

beginninglessness does each find its necessary place. Here they are

the necessary preconditions of all existence. Science is powerless to

defend herself against them otherwise than by an attempt to “explain

away” such occurrences out of the order of world-events. Upon this

point E. Mach, in his _Analyse der Empfindungen_, expresses himself

as follows: “The phrase, ‘illusion of the senses,’ shows that man has

not yet rightly come to a consciousness, or at least has not yet found

it necessary to express such consciousness in fitting terminology,

that the senses indicate neither false nor true. The only ‘true’ of

which one can speak in connection with the sense organs is that under

different conditions they yield different sensations and perceptions.

Since these conditions are so extremely manifold in their variety ...

it may very well seem ... as if the organ acts dissimilarly under

similar conditions. Results out of the usual order are what men are

accustomed to call illusions.” This is to make illusion merely truth in

an infinitesimal form, to “read” it as a special form of truth, and so

be rid of it.

But the value of the Buddha-thought in this domain does not end here.

Over and above, it explains to begin with, the every-day fact of

experience, that not every pairing evolves a new embryo. This fact is

alike incapable of explanation whether from the standpoint of faith or

from that of science.

Faith, which sees a divine soul breathed into the material of

generation, permits of no standpoint at all, since for it everything

takes place according to God’s good pleasure. From the standpoint

of science, however, with every conjunction of ovum and sperm-cell,

conception also must be granted, since here both are already the form

of the new life, already contain in themselves all the ingredients

of this new life. It is only the Buddha-thought that explains why,

meanwhile, despite the union of ovum and sperm, conception does not

take place: it has not “struck in.” At the moment when both were

open to the inflow of the energy, the latter was not ready. In the

ceaseless, unbroken attunement, each to the other, of the happenings of

a world, the proper moment was let slip.[25]

The Buddha-thought further explains the else inexplicable fact of the

simultaneous resemblance and lack of resemblance between parents and

children. The view of the matter taken by faith supplies no argument in

favour of any kind of resemblance whatever between the two. The soul

is inbreathed by God whithersoever it pleaseth him. In the view of

science, on the contrary, there is found no argument for any failure

in resemblance betwixt progenitors and offspring. Ever and always

the characteristics of the latter can only be a combination of the

characteristics of both the parents. In the Buddha-thought _alone_ are

similarity and dissimilarity alike accounted for. I may have inherited

my father’s nose, his manner of blowing it indeed, since all lay

foreshadowed in the material, and was obliged so to evolve itself:

but the evolver is a stranger, hence one common starting-point yields

an independent evolving series. Here conception means no more than

that two paths, two lines, that of the material and that of energy,

intersect one another. We are as at some cross-road, where two highways

meet, only to lead further and further away from each other the further

we pursue them.

The third item that finds an explanation in the Buddha-thought is the

fact of innate aptitudes. Where the act of learning is envisaged from a

purely empirical point of view these are a standing, incomprehensible

miracle. Opposed to this, the defectiveness of the nativistic theory

resides in the fact that according to it every being must make his

appearance fitted out all complete with fixed, inborn abilities. Midway

removed from both extremes stands the Buddha. With equal ease he

explains the possibility of gradual development and that of appearance

all ready and complete, inasmuch as with him all depends upon the

_tempo_ at which the energy closing with the material enters upon its

unfolding process. Is the _tempo_ so fast that the organic recipients

are already developed upon leaving the womb, then the innate abilities

are there present; the organs can set to forthwith, the external world

acts immediately as liberating lure, and the nativists have the last

word. Is the _tempo_ slow, then there set in processes that admit

of being empirically interpreted or read as a gradual attainment of

faculty by experience.

Apart, however, from the biological facts, the Buddha-thought also

explains those lofty speculations that have haunted the minds of men

from the earliest times, such as “previous existence,” Plato’s idea

of learning as “reminiscence,” and so forth. “Many a time it has

seemed to me as if I must have been in existence once already,” says

such a clear, keen mind as Lichtenberg. Indeed here, if one likes,

even the Kantian “_a priori_ of all experience,” this pure _ens_ of

scholasticism, acquires sense and meaning. That which with Kant stands

out from reality as a blind end, destitute of any real foothold, like

the spirit moving upon the face of the waters, here balls itself

together into the _I myself_. My Kamma is the “_a priori_”; in a

sense, such as Kant never suspected, it is true. All these minds

lack guidance, lack light. In dim fashion they feel, but they do not

see. During my latest sojourn at Anuradhapura, in the course of a

conversation with the abbot of Ruanwelli, he said to me, “Every one who

is without the Teaching is like the blind elephant in the jungle: he

feels at every twig”--to find out if it is eatable. Here we have an apt

illustration of inquiring ignorance.

With this solution of the problem of procreation as furnished by the

Buddha are involved a few necessary questions which might have been

disposed of in our fifth essay, but may more fitly be dealt with here.

Buddhism & science · 第 64 / 90 题