In every country the mountains are fountains, not only of rivers but of men. Therefore we all are born mountaineers, the offspring of rock and sunshine.
Source, in full
"From Fort Independence to Yosemite", San Francisco Daily Evening Bulletin (part 6 of the 11 part series "Summering in the Sierra") dated September 1875, published 15 September 1875; reprinted in John Muir: Summering in the Sierra, edited by Robert Engberg (University of Wisconsin Press, 1984) page 113