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the historian ; but I am only to speak of him as he is qualified to please the imagination. And in this respect Livy has, perhaps, excelled all who went before him, or have written since his time. He describes every thing in so lively a manner, that his whole history is an admirable picture, and touches on such proper circumstances in every story, that his reader becomes a kind of spectator, and feels in himself all the variety of passions which are correspondent to the several parts of the relation.
But among this set of writers there are none who more gratify and enlarge the inagination, than the authors of the new philosophy, whether we consider their theories of the earth or heavens, the discoveries they have made by glasses, or any other of their contemplations on nature. We are not a little pleased to find every green leaf swarm with millions of animals, that at their largest growth are not visible to the naked eye. There is something very engaging to the fancy, as well as to our reason, in the treatises of metals, minerals, plants, and meteors. But when we survey the whole earth at once, and the several planets that lie within its neighbourhood, we are filled with a pleasing astonishment, to see so many worlds hanging one above another, and sliding round their axles in such an amazing pomp and solemnity. If, after this, we contemplate those wild fields of æther, that reach in height as far as from Saturn to the fixed stars, and run abroad almost to an infinitude, our imagination finds its capacity filled with so immense a prospect, and puts itself upon the stretch to comprehend it. But if we yet rise higher, and consider the fixed stars as so many vast oceans of flame, that are each of them attended with a different set of planets, and still discover new firmaments and new lights that are sunk
farther in those unfathomable depths of æther, so as not to be seen by the strongest of our telescopes, we are lost in such a labyrinth of suns and worlds, and confounded with the immensity and magnificence of nature.
Nothing is more pleasant to the fancy, than to enlarge itself by degrees, in its contemplation of the various proportions which its several objects bear to each other, when it compares the body of man to the bulk of the whole earth, the earth to the circle it describes round the sun, that circle to the sphere of the fixed stars, the sphere of the fixed stars to the circuit of the whole creation, the whole creation itself to the infinite space that is every where diffused about it; or when the imagination works downward, and considers the bulk of a human body in respect of an animal a hundred times less than a mite, the particular limbs of such an animal, the different springs which actuate the limbs, the spirits which set these springs a going, and the proportionable minuteness of these several parts, before they have arrived at their full growth and perfection : but if, after all this, we take the least particle of these animal spirits, and consider its capacity of being wrought into a world that shall contain within those narrow dimensions a heaven and earth, stars and planets, and every different species of living creatures, in the same analogy and proportion they hear to each other in our own universe; such a speculation, by reason of its nicety, appears ridiculous to those who have not turned their thoughts that way, though at the same time it is founded on no less than the evidence of a demonstration. Nay, we may yet carry it farther, and discover in the smallest particle of this little world, a new inexhausted fund of matter, capable of being spun out into another universe.
I have dwelt the longer on this subject, because I think it may shew us the proper limits, as well as the defectiveness of our imagination ; how it is confined to a very small quantity of space, and immediately stopt in its operations, when it endeavours to take in any thing that is very great or very little. Let a man try to conceive the different bulk of an animal, which is twenty, from another which is an hundred times less than a mite, or to compare in his thoughts à length of a thousand diameters of the earth, with that of a million; and he will quickly find that he has no different measures in his mind, adjusted to such extraordinary degrees of grandeur or minuteness. The understanding, indeed, opens an infinite space on every side of us; but the imagination, after a few faint efforts, is immediately at a stand, and finds herself swallowed up in the immensity of the void that surrounds it: our reason can pursue a particle of matter through an infinite variety of divisions ; but the fancy soon loses sight of it, and feels in itself a kind of chasm, that wants to be filled with matter of a more sensible bulk. We can neither widen nor contract the faculty to the dimensions of either extreme. The object is too big for our capacity, when we would comprehend the circumference of a world, and dwindles into nothing, when we endeavour after the idea of an atom.
It is possible this defect of imagination may not be in the soul itself, but as it acts in conjunction with the body. Perhaps there may not be room in the brain for such a variety of impressions, or the animal spirits may be incapable of figuring them in such a manner, as is necessary to excite so very large or very minute ideas. However it be, we may well suppose, that beings of a higher nature very much excel us in this respect, as it is probable the soul of man will be infinitely more perfect hereafter in this faculty, as well as in all the rest; insomuch that, perhaps, the imagination will be able to keep pace with the understanding, and to form in itself distinct ideas of all the different modes and quantities of space.
N° 421. THURSDAY, JULY 3, 1712.
ON THE PLEASURES OF THE IMAGINATION.
How those please the imagination, who treat of subjects ab
stracted from matter, by allusions taken from it. What allusions most pleasing to the imagination. Great wri. ters how faulty in this respect. Of the art of imagining in general. The imagination capable of pain as well as pleasure. In what degree the imagination is capable either of pain or pleasure.
Ignotis errare locis, ignota videre
OVID. Met. Liv. ver. 294.
The pleasures of the imagination are not wholly confined to such particular authors as are conversant in material objects, but are often to be met with among the polite masters of morality, criticism, and other speculations abstracted from matter, who, though they do not directly treat of the visible parts of nature, often draw from them their similitudes, metaphors, and allegories. By these allusions, a truth in the understanding is, as it were, reflected by the imagination; we are able to see something like colour and shape in a notion, and to discover a scheme of thoughts traced out upon matter. And here the mind receives a great deal of satisfaction, and has two of its faculties gratified at the same time, while the fancy is busy in copying after the understanding, and transcribing ideas out of the intellectual world into the material.
The great art of a writer shews itself in the choice of pleasing allusions, which are generally to be taken from the great or beautiful works of art or nature ; for though whatever is new or uncommon is apt to delight the imagination, the chief design of an allusion being to illustrate and explain the passages of an author, it should be always borrowed from what is more known and common, than the passages which are to be explained.
Allegories, when well chosen, are like so many tracks of light in a discourse, that make every thing about them clear and beautiful. A noble metaphor, when it is placed to an advantage, casts a kind of glory round it, and darts a lustre through a whole sentence. These different kinds of allusion are but so many different manners of similitude; and, that they may please the imagination, the likeness ought to be very exact or very agreeable, as we love to see a picture where the resemblance is just, or the posture and air graceful. But we often find eminent writers very faulty in this respect: great scholars are apt to fetch their comparisons and allusions from the sciences in which they are most conversant, so that a man may see the compass of their learning in a treatise on the