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On Henry David Thoreau’s Ultimate Instrument of Perception, the “Kalendar”

On Henry David Thoreau’s Ultimate Instrument of Perception, the “Kalendar”

In the spring of 1860, at the height of his intellectual powers and the peak of his political engagement, Henry David Thoreau created something new. Part blueprint for a grand new work, part scient…

“Each season,” Thoreau observed in his Journal in June of 1857, “is but an infinitesimal point. It no sooner comes than it is gone. It has no duration.” In other words, loss is fundamental to our experience of time: every moment we experience is already passing away.

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