111. But now note farther: there is a mathematical power in the eye

which may far transcend its moral power. When the moral power is feeble,

the faculty of measurement, or of distinct delineation, may be supreme;

and of comprehension none. But here, again, I want the help of the

physical science schools. I believe the eagle has no scent, and hunts by

sight, yet flies higher than any other bird. Now, I want to know what

the appearance is to an eagle, two thousand feet up, of a sparrow in a

hedge, or of a partridge in a stubble-field. What kind of definition on

the retina do these brown spots take to manifest themselves as signs of

a thing eatable; and if an eagle sees a partridge so, does it see

everything else so? And then tell me, farther, does it see only a square

yard at a time, and yet, as it flies, take summary of the square yards

beneath it? When next you are travelling by express sixty miles an hour,

past a grass bank, try to see a grasshopper, and you will get some idea

of an eagle's optical business, if it takes only the line of ground

underneath it. Does it take more?

112. Then, besides this faculty of clear vision, you have to consider

the faculty of metric vision. Neither an eagle, nor a kingfisher, nor

any other darting bird, can see things with both their eyes at the same

time as completely as you and I can; but think of their faculty of

measurement as compared with ours! You will find that it takes you

months of labour before you can acquire accurate power, even of

_deliberate_ estimate of distances with the eye; it is one of the points

to which, most of all, I have to direct your work. And the curious thing

is that, given the degree of practice, you will measure ill or well with

the eye in proportion to the quantity of life in you. No one can measure

with a glance, when they are tired. Only the other day I got half an

inch out of a foot, in drawing merely a coat of arms, because I was

tired. But fancy what would happen to a swallow, if _it_ was half an

inch out in a foot, in flying round a corner!

113. Well, that is the first branch of the questions which we want

answered by optical science;--the actual distortion, contraction, and

other modification, of the sight of different animals, as far as it can

be known from the forms of their eyes. Then, secondly, we ourselves need

to be taught the connection of the sense of colour with health; the

difference in the physical conditions which lead us to seek for gloom,

or brightness of hue; and the nature of purity in colour, first in the

object seen, and then in the eye which prefers it.

* * * * *

(The portion of lecture here omitted referred to illustrations of

vulgarity and delicacy in colour, showing that the vulgar colours, even

when they seemed most glaring, were in reality impure and dull; and

destroyed each other by contention; while noble colour, intensely bright

and pure, was nevertheless entirely governed and calm, so that every

colour bettered and aided all the rest.)

114. You recollect how I urged you in my opening course of lectures

rather to work in the school of crystalline colour than in that of

shade.

Since I gave that first course of lectures, my sense of the necessity of

this study of brightness primarily, and of purity and gaiety beyond all

other qualities, has deeply been confirmed by the influence which the

unclean horror and impious melancholy of the modern French school--most

literally the school of death--has gained over the popular mind. I will

not dwell upon the evil phrenzy to-day. But it is in order, at once to

do the best I can, in counteraction of its deadly influence, though not

without other and constant reasons, that I give you heraldry, with all

its splendour and its pride, its brightness of colour, and

honourableness of meaning, for your main elementary practice.

115. To-day I have only time left to press on your thoughts the deeper

law of this due joy in colour and light.

On any morning of the year, how many pious supplications, do you

suppose, are uttered throughout educated Europe for "light"? How many

lips at least pronounce the word, and, perhaps, in the plurality of

instances, with some distinct idea attached to it? It is true the

speakers employ it only as a metaphor. But why is their language thus

metaphorical? If they mean merely to ask for spiritual knowledge or

guidance, why not say so plainly, instead of using this jaded figure of

speech? No boy goes to his father when he wants to be taught, or helped,

and asks his father to give him 'light.' He asks what he wants, advice

or protection. Why are not we also content to ask our Father for what we

want, in plain English?

The metaphor, you will answer, is put into our mouths, and felt to be a

beautiful and necessary one.

I admit it. In your educational series, first of all examples of modern

art, is the best engraving I could find of the picture which, founded

on that idea of Christ's being the Giver of Light, contains, I believe,

the most true and useful piece of religious vision which realistic art

has yet embodied. But why is the metaphor so necessary, or, rather, how

far is it a metaphor at all? Do you think the words 'Light of the World'

mean only 'Teacher or Guide of the World'? When the Sun of Justice is

said to rise with health in its wings, do you suppose the image only

means the correction of error? Or does it even mean so much? The Light

of Heaven is needed to do that perfectly. But what we are to pray for is

the Light of the _World_; nay, the Light "that lighteth _every man that

cometh into the world_."

116. You will find that it is no metaphor--nor has it ever been so.

To the Persian, the Greek, and the Christian, the sense of the power of

the God of Light has been one and the same. That power is not merely in

teaching or protecting, but in the enforcement of purity of body, and of

equity or justice in the heart; and this, observe, not heavenly purity,

nor final justice; but, now, and here, actual purity in the midst of the

world's foulness,--practical justice in the midst of the world's

iniquity. And the physical strength of the organ of sight,--the physical

purity of the flesh, the actual love of sweet light and stainless

colour,--are the necessary signs, real, inevitable, and visible, of the

prevailing presence, with any nation, or in any house, of the "Light

that lighteth every man that cometh into the world."

117. _Physical_ purity;--actual love of sweet light, and of fair colour.

This is one palpable sign, and an entirely needful one, that we have got

what we pretend to pray for every morning. That, you will find, is the

meaning of Apollo's war with the Python--of your own St. George's war

with the dragon. You have got that battle stamped again on every

sovereign in your pockets, but do you think the sovereigns are helping,

at this instant, St. George in his battle? Once, on your gold of the

Henrys' times, you had St. Michael and the dragon, and called your coins

'angels.' How much have they done lately, of angelic work, think you, in

purifying the earth?

118. Purifying, literally, purging and cleansing. That is the first

"sacred art" all men have to learn. And the words I deferred to the

close of this lecture, about the proposed improvements in Oxford, are

very few. Oxford is, indeed, capable of much improvement, but only by

undoing the greater part of what has been done to it within the last

twenty years; and, at present, the one thing that I would say to

well-meaning persons is, 'For Heaven's sake--literally for Heaven's

sake--let the place alone, and clean it.' I walked last week to

Iffley--not having been there for thirty years. I did not know the

church inside; I found it pitch-dark with painted glass of barbarous

manufacture, and the old woman who showed it infinitely proud of letting

me in at the front door instead of the side one. But close by it, not

fifty yards down the hill, there was a little well--a holy well it

should have been; beautiful in the recess of it, and the lovely ivy and

weeds above it, had it but been cared for in a human way; but so full of

frogs that you could not have dipped a cup in it without catching one.

What is the use of pretty painted glass in your churches when you have

the plagues of Egypt outside of them?

119. I walked back from Iffley to Oxford by what was once the most

beautiful approach to an academical city of any in Europe. Now it is a

wilderness of obscure and base buildings. You think it a fine thing to

go into Iffley church by the front door;--and you build cheap

lodging-houses over all the approach to the chief university of English

literature! That, forsooth, is your luminous cloister, and porch of

Polygnotus to your temple of Apollo. And in the centre of that temple,

at the very foot of the dome of the Radclyffe, between two principal

colleges, the lane by which I walked from my own college half an hour

ago, to this place,--Brasen-nose Lane--is left in a state as loathsome

as a back-alley in the East end of London.

120. These, I suppose, are the signs of extending liberality, and

disseminated advantages of education.

Gentlemen, if, as was lately said by a leading member of your

Government, the function of a university be only to examine, it may

indeed examine the whole mob of England in the midst of a dunghill; but

it cannot teach the gentlemen of England in the midst of a dunghill; no,

nor even the people of England. How many of her people it _ought_ to

teach is a question. We think, now-a-days, our philosophy is to light

every man that cometh into the world, and to light every man equally.

Well, when indeed you give up all other commerce in this island, and, as

in Bacon's "New Atlantis," only buy and sell to get God's first

creature, which was light, there may be some equality of gain for us in

that possession. But until then,--and we are very far from such a

time--the light cannot be given to all men equally. Nay, it is becoming

questionable whether, instead of being equally distributed to all, it

may not be equally withdrawn from us all: whether the ideas of purity

and justice,--of loveliness which is to sanctify our peace,--and of

justice which is to sanctify our battle, are not vanishing from the

purpose of our policy, and even from the conception of our education.

The uses, and the desire, of seclusion, of meditation, of restraint, and

of correction--are they not passing from us in the collision of worldly

interests, and restless contests of mean hope, and meaner fear? What

light, what health, what peace, or what security,--youths of England--do

you come here now to seek? In what sense do you receive--with what

sincerity do you adopt for yourselves--the ancient legend of your

schools, "Dominus illuminatio mea, et salus mea; quem timebo"?

121. Remember that the ancient theory on which this university was

founded,--not the theory of any one founder, observe, nor even the

concluded or expressed issue of the wisdom of many; but the tacit

feeling by which the work and hope of all were united and

completed--was, that England should gather from among her children a

certain number of purest and best, whom she might train to become, each

in their day of strength, her teachers and patterns in religion, her

declarers and doers of justice in law and her leaders in battle. Bred,

it might be, by their parents, in the fond poverty of learning, or

amidst the traditions and discipline of illustrious houses,--in either

manner separate, from their youth up, to their glorious offices--they

came here to be kindled into the lights that were to be set on the hills

of England, brightest of the pious, the loyal, and the brave. Whatever

corruption blighted, whatever worldliness buried, whatever sin polluted

their endeavour, this conception of its meaning remained; and was indeed

so fulfilled in faithfulness, that to the men whose passions were

tempered, and whose hearts confirmed, in the calm of these holy places,

you, now living, owe all that is left to you of hope in heaven, and all

of safety or honour that you have to trust and defend on earth.

Their children have forfeited, some by guilt, and many in folly, the

leadership they inherited; and every man in England now is to do and to

learn what is right in his own eyes. How much need, therefore, that we

should learn first of all what eyes are; and what vision they ought to

possess--science of sight granted only to clearness of soul; but granted

in its fulness even to mortal eyes: for though, after the skin, worms

may destroy their body, happy the pure in heart, for they, yet in their

flesh, shall see the Light of Heaven, and know the will of God.

LECTURE VII.

THE RELATION TO ART OF THE SCIENCES OF INORGANIC FORM.

_February 9th, 1872._

122. I did not wish in my last lecture, after I had directed your

attention to the special bearing of some of the principles I pleaded

for, to enforce upon you any farther general conclusions. But it is

necessary now to collect the gist of what I endeavoured to show you

respecting the organs of sight; namely, that in proportion to the

physical perfectness or clearness of them is the degree in which they

are raised from the perception of prey to the perception of beauty and

of affection. The imperfect and brutal instrument of the eye may be

vivid with malignity, or wild with hunger, or manifoldly detective with

microscopic exaggeration, assisting the ingenuity of insects with a

multiplied and permanent monstrosity of all things round them; but the

noble human sight, careless of prey, disdainful of minuteness, and

reluctant to anger, becomes clear in gentleness, proud in reverence, and

joyful in love. And finally, the physical splendour of light and colour,

so far from being the perception of a mechanical force by a mechanical

instrument, is an entirely spiritual consciousness, accurately and

absolutely proportioned to the purity of the moral nature, and to the

force of its natural and wise affections.

123. That was the sum of what I wished to show you in my last lecture;

and observe, that what remains to me doubtful in these things,--and it

is much--I do not trouble you with. Only what I know that on experiment

you can ascertain for yourselves, I tell you, and illustrate, for the

time, as well as I can. Experiments in art are difficult, and take years

to try; you may at first fail in them, as you might in a chemical

analysis; but in all the matters which in this place I shall urge on

your attention I can assure you of the final results.

That, then, being the sum of what I could tell you with certainty

respecting the methods of sight, I have next to assure you that this

faculty of sight, disciplined and pure, is the only proper faculty

which the graphic artist is to use in his inquiries into nature. His

office is to show her appearances; his duty is to know them. It is not

his duty, though it may be sometimes for his convenience, while it is

always at his peril, that he knows more;--knows the _causes_ of

appearances, or the essence of the things that produce them.

124. Once again, therefore, I must limit my application of the word

science with respect to art. I told you that I did not mean by 'science'

such knowledge as that triangles on equal bases and between parallels

are equal, but such knowledge as that the stars in Cassiopeia are in the

form of a _W_. But, farther still, it is not to be considered as

science, for an artist, that they are stars at all. What _he_ has to

know is that they are luminous points which twinkle in a certain manner,

and are pale yellow, or deep yellow, and may be quite deceptively

imitated at a certain distance by brass-headed nails. This he ought to

know, and to remember accurately, and his art knowledge--the science,

that is to say--of which his art is to be the reflection, is the sum of

knowledges of this sort; his memory of the look of the sun and moon at

such and such times, through such and such clouds; his memory of the

look of the mountains,--of the look of sea,--of the look of human faces.

125. Perhaps you would not call that 'science' at all. It is no matter

what either you or I call it. It _is_ science of a certain order of

facts. Two summers ago, looking from Verona at sunset, I saw the

mountains beyond the Lago di Garda of a strange blue, vivid and rich

like the bloom of a damson. I never saw a mountain-blue of that

particular quality before or since. My science as an artist consists in

my knowing that sort of blue from every other sort, and in my perfect

recollection that this particular blue had such and such a green

associated with it in the near fields. I have nothing whatever to do

with the atmospheric causes of the colour: that knowledge would merely

occupy my brains wastefully, and warp my artistic attention and energy

from their point. Or to take a simpler instance yet: Turner, in his

early life, was sometimes good-natured, and would show people what he

was about. He was one day making a drawing of Plymouth harbour, with

some ships at the distance of a mile or two, seen against the light.

Having shown this drawing to a naval officer, the naval officer

observed with surprise, and objected with very justifiable indignation,

that the ships of the line had no port-holes. "No," said Turner,

"certainly not. If you will walk up to Mount Edgecumbe, and look at the

ships against the sunset, you will find you can't see the port-holes."

"Well, but," said the naval officer, still indignant, "you know the

port-holes are there." "Yes," said Turner, "I know that well enough; but

my business is to draw what I see, and not what I know is there."

126. Now, that is the law of all fine artistic work whatsoever; and,

more than that, it is, on the whole, perilous to you, and undesirable,

that you _should_ know what is there. If, indeed, you have so perfectly

disciplined your sight that it cannot be influenced by prejudice;--if

you are sure that none of your knowledge of what is there will be

allowed to assert itself; and that you can reflect the ship as simply as

the sea beneath it does, though you may know it with the intelligence of

a sailor,--then, indeed, you may allow yourself the pleasure, and what

will sometimes be the safeguard from error, of learning what ships or

stars, or mountains, are in reality; but the ordinary powers of human

perception are almost certain to be disturbed by the knowledge of the

real nature of what they draw: and, until you are quite fearless of your

faithfulness to the appearances of things, the less you know of their

reality the better.

127. And it is precisely in this passive and naïve simplicity that art

becomes, not only greatest in herself, but most useful to science. If

she _knew_ anything of what she was representing, she would exhibit that

partial knowledge with complacency; and miss the points beside it, and

beyond it. Two painters draw the same mountain; the one has got

unluckily into his head some curiosity about glacier marking; and the

other has a theory of cleavage. The one will scratch his mountain all

over;--the other split it to pieces; and both drawings will be equally

useless for the purposes of honest science.

128. Any of you who chance to know my books cannot but be surprised at

my saying these things; for, of all writers on art, I suppose there is

no one who appeals so often as I do to physical science. But observe, I

appeal as a critic of art, never as a master of it. Turner made drawings

of mountains and clouds which the public said were absurd. I said, on

the contrary, they were the only true drawings of mountains and clouds

ever made yet: and I proved this to be so, as only it could be proved,

by steady test of physical science: but Turner had drawn his mountains

rightly, long before their structure was known to any geologist in

Europe; and has painted perfectly truths of anatomy in clouds which I

challenge any meteorologist in Europe to explain at this day.

129. And indeed I was obliged to leave "Modern Painters" incomplete, or,

rather, as a mere sketch of intention, in analysis of the forms of cloud

and wave, because I had not scientific data enough to appeal to. Just

reflect for an instant how absolutely whatever has been done in art to

represent these most familiar, yet most spectral forms of cloud--utterly

inorganic, yet, by spiritual ordinance, in their kindness fair, and in

their anger frightful,--how all that has yet been done to represent

them, from the undulating bands of blue and white which give to heraldry

its nebule bearing, to the finished and deceptive skies of Turner, has

been done without one syllable of help from the lips of science.[F]

[F] Rubens' rainbow, in the Loan Exhibition this year, was of dull

blue, _darker_ than the sky, in a scene lighted from the side of

the rainbow. Rubens is not to be blamed for ignorance of optics,

but for never having so much as looked at a rainbow carefully: and

I do not believe that my friend Mr. Alfred Hunt, whose study of

rainbow, in the rooms of the Water Colour Society last year, was

unrivalled, for vividness and truth, by any I know, learned how to

paint it by studying optics.

130. The rain which flooded our fields the Sunday before last, was

followed, as you will remember, by bright days, of which Tuesday the

20th was, in London, notable for the splendour, towards the afternoon,

of its white cumulus clouds. There has been so much black east wind

lately, and so much fog and artificial gloom, besides, that I find it is

actually some two years since I last saw a noble cumulus cloud under

full light. I chanced to be standing under the Victoria Tower at

Westminster, when the largest mass of them floated past, that day, from

the north-west; and I was more impressed than ever yet by the awfulness

of the cloud-form, and its unaccountableness, in the present state of

our knowledge. The Victoria Tower, seen against it, had no magnitude: it

was like looking at Mont Blanc over a lamp-post. The domes of cloud-snow

were heaped as definitely; their broken flanks were as grey and firm as

rocks, and the whole mountain, of a compass and height in heaven which

only became more and more inconceivable as the eye strove to ascend it,

was passing behind the tower with a steady march, whose swiftness must

in reality have been that of a tempest: yet, along all the ravines of

vapour, precipice kept pace with precipice, and not one thrust another.

131. What is it that hews them out? Why is the blue sky pure

there,--cloud solid here; and edged like marble: and why does the state

of the blue sky pass into the state of cloud, in that calm advance?

It is true that you can more or less imitate the forms of cloud with

explosive vapour or steam; but the steam melts instantly, and the

explosive vapour dissipates itself. The cloud, of perfect form, proceeds

unchanged. It is not an explosion, but an enduring and advancing

presence. The more you think of it, the less explicable it will become

to you.

132. That this should yet be unexplained in the kingdom of the air is,

however, no marvel, since aspects of a similar kind are unexplained in

the earth, which we tread, and in the water which we drink and wash

with. You seldom pass a day without receiving some pleasure from the

cloudings in marble; can you explain how the stone was clouded? You

certainly do not pass a day without washing your hands. Can you explain

the frame of a soap-bubble?

133. I have allowed myself, by way of showing at once what I wanted to

come to, to overlook the proper arrangement of my subject, and I must

draw back a little.

The Eagle's Nest Ten Lectures on the Relation of Natural Science to Art, Given Before the University of Oxford, in Lent Term, 1872 · 第 6 / 14 段