"Circles" is an essay by Ralph Waldo Emerson, first published in 1841. The essay consists of a philosophical view of the vast array of circles one may find throughout nature. In the opening line of the essay Emerson states "The eye is the first circle; the horizon which it forms is the second; and throughout nature this primary figure is repeated without end".
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Circles (Ralph Waldo Emerson) Wikipedia(Text) CC BY-SA