Book,  Chapter

 1     II,  XIV |     duration, as set out by certain periods, and marked by certain measures
 2     II,  XIV |           whole duration into equal periods. In the measuring of extension,
 3     II,  XIV |              by constantly repeated periods. What portions of duration
 4     II,  XIV | distinguished and measured, by such periods, come not so properly under
 5     II,  XIV |          observable, in equidistant periods, they would serve mankind
 6     II,  XIV |            returning at equidistant periods in all parts of the earth,
 7     II,  XIV |           constantly at equidistant periods, and making itself universally
 8     II,  XIV |            or measure their time by periods that had no sensible marks
 9     II,  XIV |             ever be known that such periods were equal? To which I answer,—
10     II,  XIV |             their assigned parts or periods are equal in duration one
11     II,  XIV |          alter the equality of such periods, and thereby destroy the
12     II,  XIV |        motion, as well as any other periods of other appearances; the
13     II,  XIV |            at seemingly equidistant periods; of which seeming equality
14     II,  XIV |              in seeming equidistant periods. For if the motion of the
15     II,  XIV |         constant use of them, as of periods set out by the revolutions
16     II,  XIV |           or as known parts of such periods, have fixed the ideas of
17     II,  XIV |           that motion, or any other periods of revolution, but the having
18     II,  XIV |     duration exceeding as many such periods as I can reckon, let me
19     II,  XIV |             and seeming equidistant periods, we get the ideas of certain
20     II,  XV  |            some such fixed parts or periods, the order of things would
21     II,  XVII|            finite: and the ordinary periods of succession, whereby we
22     II,  XVII|            and reckon by multiplied periods yet to come, still extending
23     II,  XXVI|         diamond, things whose usual periods we know not.~5. Relations
24    III,  X   |          the harmony of well-turned periods, do yet amount to nothing