property of walking: it’s a fantastic source of solitude. It’s important here to remember our technical definition of solitude as freedom from input from other minds, as it’s exactly this absence of reaction to the clatter of civilization that supports all of these benefits. Nietzsche emphasized this point when he contrasted the originality of his walk-stimulated ideas with those produced by the bookish scholar locked in a library reacting only to other people’s work. “We do not belong,” he wrote, “to those who have ideas only among books, when stimulated by books.”
