“Here, if nowhere else in the land, the sense of satiety is unknown; and it is to this mental tonic, even more than to the bracing air of the heights, that we owe the unwearied spirit which nerves us to walk more leagues upon the mountains than we could walk miles upon the plain. For in the lowlands we walk with the body only; in the highlands we walk with the mind.”

“Here, if nowhere else in the land, the sense of satiety is unknown; and it is to this mental tonic, even more than to the bracing air of the heights, that we owe the unwearied spirit which nerves us to walk more leagues upon the mountains than we could walk miles upon the plain. For in the lowlands we walk with the body only; in the highlands we walk with the mind.”

— Henry Stephens Salt