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[990e] its adepts called stereometry; and a divine and marvellous thing it is to those who envisage it and reflect, how the whole of nature is impressed with species and class according to each analogy, as power and its opposite1 continually turn

1 “Power”is multiplication, its“opposite”is extension: 1 point doubled gives the beginning of a line; multiplying 2 by 2 gives 4 as a square surface, and by 2 again, 8 as the cube. So(see below)we proceed“from 1 to 8.”

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