It may seem a rash attempt to endeavor to separate into its different elements the magic power exercised upon our minds by the physical world, since the character of the landscape and of every imposing scene in Nature depends so materially upon the mutual relation of the ideas and sentiments simultaneously excited in the mind of the observer.
Translated by E.C. Otte, Cosmos: A Sketch of a Physical Description of the Universe (Volume 1), Introduction (p. 27)