Quote in context, from the last two pages of the book
In a world of continua, [conceptual] boundaries are inherently unstable. Whether they are conceptual, physical, or political, boundaries are border wars waiting to happen. At every boundary, there is a dilemma of classification: who or what belongs on each side? In politics, these dilemmas evoke intense passions because the classifications confer advantages and disadvatages, rewards and penalties, permissions and restrictions, or power and powerlessness.
. . .
Boundary tensions mya be the curse of our existence as thiiking and communal beings but political argument is our privelege. It allows us to fight our border wars with imagination and words.
