Frederick Of Isenberg
Count Frederick of Isenberg (Friedrich von Isenberg) (1193 – 15 November 1226) was a German noble, the younger son of Count Arnold of Altena (died 1209). His family castle was the Isenburg near Hattingen, Germany.
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“Science is the knowledge of many, orderly and methodically
digested and arranged, so as to become attainable by one. The
knowledge of reasons and their conclusions constitutes abstract, that of causes and their effects, and of the laws of nature, natural science.”
—John Frederick William Herschel (1792–1871)