Wilhelm Pfeffer
Wilhelm Friedrich Philipp Pfeffer (9 March 1845 - 31 January 1920) was a German botanist and plant physiologist born in Grebenstein.
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“The History of the world is not the theatre of happiness. Periods of happiness are blank pages in it, for they are periods of harmony—periods when the antithesis is in abeyance.”
—Georg Wilhelm Friedrich Hegel (1770–1831)
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