Maybe we are all prospective migrants. The lines of national borders on maps are artificial constructs, as unnatural to us as they are to birds flying overhead. Our first impulse is to ignore them.

Our countries are weaker: they cannot protect us from imported goods, they can't protect us from climate change, they cannot protect us from epidemics. These things cross borders. But the kind of cooperation that would protect us from those things was completely lacking and because of this there's been a backlash. People feel vulnerable.

The gun of the father is always the undoing of the son.

As a society, you were unwilling to reflect upon the shared pain that united you with those who attacked you. You retreated into myths of your own difference, assumptions of your own superiority. And you acted out these beliefs on the stage of the world, so that the entire planet was rocked by the repercussions of your tantrums, not least my family, now facing war thousands of miles away.

Time is our most precious currency. So it's significant that we are being encouraged, wherever possible, to think of our attention not as expenditure but as consumption. This blurring of labor and entertainment forms the basis, for example, of the financial alchemy that conjures deca-billion-dollar valuations for social-networking companies.

Sufi poetry is, in a sense, self-help poetry about how to live a decent life, how to deal with your mortality.

Lahore, the second largest city of Pakistan, ancient capital of the Punjab, home to nearly as many people as New York, layered like a sedimentary plain with the accreted history of invaders from the Aryans to the Mongols to the British.