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I heard once from a learned man, that the motions of the sun, moon, and stars, constituted time, and I assented not. For why should not the motions of all bodies rather be times? Or, if the lights of heaven should cease, and a potter's wheel run round, should there be no time by which we might measure those whirlings, and say, that either it moved with equal pauses, or if it turned sometimes slower, otherwhiles quicker, that some rounds were longer, other shorter? Or, while we were saying this, should we not also be speaking in time? Or, should there in our words be some syllables short, others long, but because those sounded in a shorter time, these in a longer? God, grant to men to see in a small thing notices common to things great and small. The stars and lights of heaven, are also for signs, and for seasons, and for years, and for days; they are; yet neither should I say, that the going round of that wooden wheel was a day, nor yet he, that it was therefore no time.
I desire to know the force and nature of time, by which we measure the motions of bodies, and say (for example) this motion is twice as long as that. For I ask, Seeing “day” denotes not the stay only of the sun upon the earth (according to which day is one thing, night another); but also its whole circuit from east to east again; according to which we say, “there passed so many days,” the night being included when we say, “so many days,” and the nights not reckoned apart;—seeing then a day is completed by the motion of the sun and by his circuit from east to east again, I ask, does the motion alone make the day, or the stay in which that motion is completed, or both? For if the first be the day; then should we have a day, although the sun should finish that course in so small a space of time, as one hour comes to. If the second, then should not that make a day, if between one sun-rise and another there were but so short a stay, as one hour comes to; but the sun must go four and twenty times about, to complete one day. If both, then neither could that be called a day; if the sun should run his whole round in the space of one hour; nor that, if, while the sun stood still, so much time should overpass, as the sun usually makes his whole course in, from morning to morning. I will not therefore now ask, what that is which is called day; but, what time is, whereby we, measuring the circuit of the sun, should say that it was finished in half the time it was wont, if so be it was finished in so small a space as twelve hours; and comparing both times, should call this a single time, that a double time; even supposing the sun to run his round from east to east, sometimes in that single, sometimes in that double time. Let no man then tell me, that the motions of the heavenly bodies constitute times, because, when at the prayer of one, the sun had stood still, till he could achieve his victorious battle, the sun stood still, but time went on. For in its own allotted space of time was that battle waged and ended. I perceive time then to be a certain extension. But do I perceive it, or seem to perceive it? Thou, Light and Truth, wilt show me.
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