Orla. Why not the swift foot of Time? Had not that been as proper?
Ros. By no means, Sir. Time travels in diverse paces with diverse persons. I’ll tell you who Time ambles withal, who Time trots withal, who Time gallops withal, and who he stands still withal.
Orla. I pr’ythee whom doth he trot withal?
Ros. Marry, he trots hard with a young maid between the contract of her marriage and the day it is<170> solemnized: if the interim be but a se’ennight, Time’s pace is so hard that it seems the length of seven years.
Orla. Who ambles Time withal?
Ros. With a priest that lacks Latin, and a rich man that hath not the gout: for the one sleeps easily, because he cannot study; and the other lives merrily, because he feels no pain: the one lacking the burden of lean and wasteful learning; the other knowing no burthen of heavy tedious penury. These Time ambles withal.
Orla. Whom doth he gallop withal?
Ros. With a thief to the gallows: for tho’ he go as softly as foot can fall, he thinks himself too soon there.
Orla. Whom stays it still withal?
Ros. With lawyers in the vacation: for they sleep between term and term, and then they perceive not how Time moves.
As you like it, act 3. sc. 8.55
The natural method of computing present time, shows how far from truth we may be led by the irregular influence of passion: nor are our eyes immediately opened when the scene is past; for the deception continues while there remain any traces of the passion. But looking back upon past time when the joy or distress is no longer remembered, the computation is very different: in that condition, we coolly and deliberately make use of the ordinary measure, namely, the course of our perceptions. And I shall now proceed to the errors that this measure is subjected to. Here we must distinguish between a train of perceptions,<171> and a train of ideas: real objects make a strong impression, and are faithfully remembered: ideas, on the contrary, however entertaining at the time, are apt to escape a subsequent recollection. Hence it is, that in retrospection, the time that was employ’d upon real objects, appears longer than that employ’d upon ideas: the former are more accurately recollected than the latter; and we measure the time by the number that is recollected. This doctrine shall be illustrated by examples. After finishing a journey through a populous country, the frequency of agreeable objects distinctly recollected by the traveller, makes the time spent in the journey appear to him longer than it was in reality; which is chiefly remarkable in the first journey, when every object is new, and makes a strong impression. On the other hand, after finishing a journey through a barren country thinly peopled, the time appears short, being measured by the number of objects, which were few, and far from interesting. Here in both instances a computation is made, directly opposite to that made during the journey. And this, by the way, serves to account for what may appear singular, that in a barren country, a computed mile is always longer, than near the capital where the country is rich and populous: the traveller has no natural measure of the miles he has travelled, other than the time bestow’d upon the journey; nor any natural measure of the time, other than the num-<172>ber of his perceptions: now these, being few from the paucity of objects in a waste country, lead him to compute that the time has been short, and consequently that the miles have been few: by the same method of computation, the great number of perceptions from the quantity of objects in a populous country, make the traveller conjecture that the time has been long, and the miles many. The last step of the computation is obvious: in estimating the distance of one place from another, if the miles be reckoned few in number, each mile must of course be long; if many in number, each must be short.
Again, the travelling with an agreeable companion, produceth a short computation both of the road and of time; especially if there be few objects that demand attention, or if the objects be familiar: and the case is the same of young people at a ball, or of a joyous company over a bottle: the ideas with which they have been entertained, being transitory, escape the memory; after the journey and the entertainment are over, they reflect that they have been much diverted, but scarce can say about what.
When one is totally occupied with any agreeable work that admits not many objects, time runs on without observation: and upon a subsequent recollection, must appear short, in proportion to the paucity of objects. This is still more remarkable in close contemplation and in deep thinking,<173> where the train, composed wholly of ideas, proceeds with an extreme slow pace: not only are the ideas few in number, but are apt to escape an after reckoning. The like false reckoning of time, may proceed from an opposite state of mind: in a reverie, where ideas float at random without making any impression, time goes on unheeded, and the reckoning is lost. A reverie may be so profound as to prevent the recollection of any one idea: that the mind was busied in a train of thinking, may in general be remembered; but what was the subject, has quite escaped the memory. In such a case, we are altogether at a loss about the time, having no data for making a computation. No cause produceth so false a reckoning of time, as immoderate grief: the mind, in that state, is violently attached to a single object, and admits not a different thought: any other object breaking in, is instantly banished, so as scarce to give an appearance of succession. In a reverie, we are uncertain of the time that is past; but in the example now given, there is an appearance of certainty, that the time must have been short, when the perceptions are so few in number.
The natural measure of space, appears more obscure than that of time. I venture however to mention it, leaving it to be further prosecuted, if it be thought of any importance.
The space marked out for a house, appears considerably larger after it is divided into its proper<174> parts. A piece of ground appears larger after it is surrounded with a fence; and still larger when it is made a garden and divided into different compartments.
On the contrary, a large plain looks less after it is divided into parts. The sea must be excepted, which looks less from that very circumstance of not being divided into parts.
A room of a moderate size appears larger when properly furnished. But when a very large room is furnished, I doubt whether it be not lessened in appearance.
A room of a moderate size looks less by having a ceiling lower than in proportion. The same low ceiling makes a very large room look larger than it is in reality.
These experiments are by far too small a stock for a general theory: but they are all that occur at present; and instead of a regular system, I have nothing for the reader’s instruction but a few conjectures.
The largest angle of vision seems to be the natural measure of space: the eye is the only judge; and in examining with it the size of any plain, or the length of any line, the most accurate method that can be taken is, to run over the object in parts: the largest part that can be seen with one stedfast look, determines the largest angle of vision; and when that angle is given, one may in-<175>stitute a calculation by trying with the eye how many of these parts are in the whole.
Whether this angle be the same in all men, I know not: the smallest angle of vision is ascertained; and to ascertain the largest, would not be less curious.
But supposing it known, it would be a very imperfect measure; perhaps more so than the natural measure of time: for it requires great steadiness of eye to measure a line with any accuracy, by applying to it the largest angle of distinct vision. And supposing that steadiness to be acquired by practice, the measure will be imperfect from other circumstances. The space comprehended under this angle, will be different according to the distance, and also according to the situation of the object: of a perpendicular this angle will comprehend the smallest space; the space will be larger in looking upon an inclined plain; and will be larger or less in proportion to the degree of inclination.
This measure of space, like the measure of time, is liable to several errors from certain operations of the mind, which will account for some of the erroneous judgements above