I should study Nature's laws in all their crossings and unions; I should follow magnetic streams to their source and follow the shores of our magnetic oceans. I should go among the rays of the aurora, and follow them to their beginnings, and study their dealings and communications with other powers and expressions of matter.

John of the Mountains: The Unpublished Journals of John Muir (ed. Univ of Wisconsin Press, 1979) - ISBN: 9780299078843