Famous quotes containing the words pearl and/or development:
“I know of the leafy paths that the witches take
Who come with their crowns of pearl and their spindles of wool,
And their secret smile, out of the depths of the lake....”
—William Butler Yeats (1865–1939)
“I hope I may claim in the present work to have made it probable that the laws of arithmetic are analytic judgments and consequently a priori. Arithmetic thus becomes simply a development of logic, and every proposition of arithmetic a law of logic, albeit a derivative one. To apply arithmetic in the physical sciences is to bring logic to bear on observed facts; calculation becomes deduction.”
—Gottlob Frege (1848–1925)
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