You walk for days among trees and among stones. Rarely does the eye light on a thing, and then only when it has recognized that thing as the sign of another thing: a print in the sand indicates the tiger's passage; a marsh announces a vein of water; the hibiscus flower, the end of winter. All the rest is silent and interchangeable; trees and stones are only what they are.
Italo Calvino, Invisible Cities
being, existence, nature, simplicity