Peer Steinbruck

Over a period of 20 years, German reunification has cost 2 trillion euros, or an average of 100 billion euros a year. So, we have to ask ourselves: Aren't we willing to pay a tenth of that over several years for Europe's unity?

There's no more place in the euro zone for well-meaning laxness when dealing with deficits and failings. If the demands on Greece aren't taken seriously, we'll get stuck in quicksand. In the worst case, this would make it acceptable for one tranche to not be paid out. It is in the Greeks own interest not to test that.

Greece will not manage to get back on its feet without restructuring its debt. There is no way around it. The country's creditors will have to reduce a portion of its debts by extending maturity dates, lowering interest rates or giving them what's called a 'haircut' in financial jargon.