I think there is a heritage which I'm proud of, which is a fight for democracy, a fight for social justice, a fight for freedom. My grandfather went to jail or exile six times in his life, fighting for his principles for democracy, or for his country. And my father twice.

Unfortunately, corruption is widespread in government agencies and public enterprises. Our political system promotes nepotism and wasting money. This has undermined our legal system and confidence in the functioning of the state. One of the consequences is that many citizens don't pay their taxes.

The fact that we're going through a crisis is an opportunity for Europe to be more coordinated and more integrated. We're actually talking about a European Monetary Fund or euro bonds, about guarantees for countries, about economic governance in the European Union. That shows the strength of Europe.

Europe has a lot of strength. We need to pool that strength, and I am very much in favour of that - more of a deeper political union.

If Greece had gone through a very normal political life, I may have not been in politics. But just the fact that I lived through huge upheavals and very difficult struggles and polarization and the barbarism of dictatorships - that made me feel that we had to change this country.

There is this concept of politics as a dirty game. It's a difficult game, but it doesn't have to be dirty. I think this is what we need to bring to politics. I think politics around the world has very often been captured by big interests - 'lobbies' they call them in the States.