“Every artificial excavation—every well and cellar—every cut for a fort, common road, railway, or canal—every quarry—every tunnel through a mountain—and every pit and gallery of a mine bored into the solid earth, furnish means of investigating its interior. Still more do the inland precipices, and the rocky promontories and headlands along the rivers, lakes, seas, and oceans; the naked mountain-sides ribbed with strata, that bound the defiles, gorges, and valleys; the ruins accumulated at the feet of lofty pinnacles and barriers, and those that have been transported and scattered, far and wide, over the earth; present us with striking features of the internal structure of our planet. Most of all, do the inclined strata push up their hard edges, in varied succession, and thus faithfully disclose the form and substance of the deep interior, as it exists many miles and leagues beneath the observer's feet.”
Vol. 1
The Wonders of Geology (1839)
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Gideon Mantell 19
British scientist and obstetrician 1790–1852Related quotes
“Over every mountain, there is a path, although it may not be seen from the valley.”

1870s, Society and Solitude (1870), Quotation and Originality
Source: Prose and Poetry

"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

“Every river is looking for an ocean.”
Ron English's Fauxlosophy (2016)
Source: "The Road" U.S. 1 (1938), The Book of the Dead

“Every mountain is, rightly considered, an invitation to climb.”
Ampersand
Little Rivers http://www.gutenberg.org/dirs/etext98/ltrvs10.txt (1895)