A mere savage, ignorant and brutal, and the creature of appetite alone, can never rise from his degradation, until he has learned to draw from the mineral kingdom the instruments of arts and civilization, or, at least, to use the aids that are thus obtained. The axe, the hoe, the plough, the loom, are inseparable means and companions of his advancement.

Vol. 1 - The Wonders of Geology (1839)