Today, no less than in the past, the tetrahedral form of the earth and the relation of the tetrahedron to the poles and to the equator preserve the conditions that favor rapid evolution. — Ellsworth Huntington Copy Share Image
“There is value in any experience that reminds us of our dependency on the soil-plant-animal-man food chain [...] Civilization has so cluttered this elemental man-earth relation with gadgets and middlemen that awareness of it is growing dim. We fancy that… — Aldo Leopold Copy Share Image
![“There is value in any experience that reminds us of our dependency on the soil-plant-animal-man food chain [...] Civilization has so cluttered this elemental man-earth relation with gadgets and middlemen that awareness of it is growing dim. We fancy that industry supports us, forgetting what…” quote by Aldo Leopold](https://sms4smile.com/quotes/img-quotes/3d9/aldo-leopold-1278_food-chain_there-is-value-in-any-experience-that-re_1568266.jpg)