"A man with a beard is respected. The same applies to mountains. A person with a beard and hair is like a mountain covered with forest and grass. In the same vein, a mountain sheltered in forest and grass is like a person well clothed. A barren mountain is no different from a naked person, exposing its flesh and bone. An unsheltered mountain with poor soil painfully resembles a penniless and rugged man."
– Inscription on momument found in Yunnan, dated 1714