Nietszche's take on outdoor thinking
We do not belong to those who have ideas only among books, when stimulated by books. It is our habit to think outdoors—walking, lleaping, climbing, dancing, preferably on lonely mountains or near the sea where even the trails become thoughtful.[ . . . ] We read rarely, but not worse on that account. How quickly we guess how someone has come by his ideas; whether it was while sitting in front of his inkwell, with a pinched belly, his head bowed low over the paper—in which case we are quickly ¤nished with his book, too! Cramped intestines betray themselves—you can bet on that—no less than closet air, closet ceilings, closet narrowness.—
(GS 366)