We all live in bubbles. It’s time to burst them.

Those of us blessed with freedom to learn are all — every one of us — in a bubble of our own making. It can be broad and diverse, created from all kinds of information sources. But there is still a bubble.

Which is why opinion pages and books matter so much. They serve to expand the bubble. Columns can nudge us toward new ideas and broader perspectives, but it is a book that punches out the bubble and really expands the mind.