The closer one gets to either the eastern or the southern fringe of the German-speaking world-the closer one gets, in other words, to the threatening and more numerous Slavs-the more insecure and dangerous nationalism becomes.

It is easy to be a moral perfectionist when one is politically unaccountable.

Bismarck's genius, as well as his great flaw, was the same as that of another outstanding nineteenth-century politician of the German-speaking world, Prince Clemens Metternich. Both men were artificers, able to hold off the future by building a fragile present out of pieces of the past.

While the foreign policy elite in Washington focuses on the 8,000 deaths in a conflict in Syria – half a world away from the United States – more than 47,000 people have died in drug-related violence since 2006 in Mexico. A deeply troubled state as well as a demographic and economic giant on the United States’ southern border, Mexico will affect America’s destiny in coming decades more than any state or combination of states in the Middle East.

The closer one gets to either the eastern or the southern fringe of the German-speaking world-the closer one gets, in other words, to the threatening and more numerous Slavs-the more insecure and dangerous nationalism becomes.

It is a cliche these days to observe that the United States now possesses a global empire - different from Britain's and Rome's but an empire nonetheless.

Travel is like a good challenging book: It demands presentness-the ability to live completely in the moment.