Those who erect prisons and then lock people up within them may, altogether irrespective of the prison-builders' own intentions, end up liberating the very persons they have so imprisoned. Those whom such prisons are designed to hold captive may, through that very captivity, find themselves set free at last--inalienably so: never again at risk of being held captive by any captors. Henceforth, their capacity will always exceed their captivity, springing open their prison doors, no matter how tightly locked they may remain.