Page:Eddington A. Space Time and Gravitation. 1920.djvu/217

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XII]
ON THE NATURE OF THINGS
201

the mind has but regained from nature that which the mind has put into nature.

We have found a strange foot-print on the shores of the unknown. We have devised profound theories, one after another, to account for its origin. At last, we have succeeded in reconstructing the creature that made the footprint. And Lo! it is our own.