“We bow only to the highest mountain.”

If Only We Have Love (1957)
Context: If we only have love
We will never bow down
We'll be tall as the pines
Neither heroes nor clowns.
If we only have love
Then we'll only be men
And we'll drink from the Grail
To be born once again;
Then with nothing at all
But the little we are
We'll have conquered all time
All space, the sun, and the stars!

Reported in Josiah Hotchkiss Gilbert, Dictionary of Burning Words of Brilliant Writers (1895), p. 291.

When he unveiled the Mountain Club War Memorial at Maclear's Beacon on the summit of Table Mountain (1923), as cited by Alan Paton in his final essay, A Literary Remembrance, published posthumously in TIME, 25 April 1988, p. 106

"On the Stork Tower" (《登鹳雀楼》), trans. Yuanchong Xu

Source: Thus Spoke Zarathustra

Letter to Dionigi di Borgo San Sepolcro (26 April 1336), "The Ascent of Mount Ventoux" in Familiar Letters http://petrarch.petersadlon.com/read_letters.html?s=pet17.html as translated by James Harvey Robinson (1898); the name Mount Ventosum relates to it being a windy mountain.
Context: To-day I made the ascent of the highest mountain in this region, which is not improperly called Ventosum. My only motive was the wish to see what so great an elevation had to offer. I have had the expedition in mind for many years; for, as you know, I have lived in this region from infancy, having been cast here by that fate which determines the affairs of men. Consequently the mountain, which is visible from a great distance, was ever before my eyes, and I conceived the plan of some time doing what I have at last accomplished to-day.

"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
1870s

Book IV, fable 23, line 1.
Fables