Rowan Moore, here:
I’m told, by people who don’t suffer from the radical unmusicality which is my personal affliction, that in music pauses are as important as the notes. Something similar is true of architecture. The bits that are not there matter as much as those that are, as if buildings are only completed by the people and actions they contain. You sometimes want the architecture to hold back. What makes bad design offensive is often the urge to fill every space with the decisions of the architect, to determine, finish and close down a place before it is inhabited.