Not the building of walls

“Cosmopolitanism is not a tribal trait; it is a virtue, as much as courage or honesty or compassion. Almost without exception, the periods of human civilization that we admire as we look back have been cosmopolitan in practice; even those, like the Bronze Age, that we imagine as monolithic and traditional turn out to be shaped by trade and exchange and multiple identity.” – Adam Gopnik, “Being Honest About Trump”