“The open road still softly calls, like a nearly forgotten song of childhood...This appeal, I suspect, has been meticulously crafted by natural selection as an essential element in our survival. Long summers, mild winters, rich harvests, plentiful game—none of them lasts forever....Your own life...even your species‘ might be owed to a restless few—drawn, by a craving they can hardly articulate or understand, to undiscovered lands and new worlds."