Travelling-Boundaries-and-Civilization

“Did we manage to leap over that ‘wall of ideas’ that so strongly divides mankind’s greatest civilisations one from the other? … Two kinds of journey are possible on planet Earth.  Had you never thought of that?  There are those that take place within the boundaries of other civilisations, and there are those that lead us inside the boundaries of other civilisations.  Those that do not touch the wall of ideas, and those that leap over it…”
(Fosco Maraini, Paropamiso, 1963)