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 Muir, Edwin Way Teale, Henry Bugbee Kane (2001). “The Wilderness World of John Muir”, p.315, Houghton Mifflin Harcourt