First of all, Greece won't go down. We're talking about a country that is capable of making change. Europe will not allow the destabilization of the 27-country euro zone. But if there were no action, then markets would start becoming jittery about other countries - and not only Spain and Portugal, but other countries in the European Union.

I never thought of politics as a profession.

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.

As long as I feel I am doing what I think is right and just for my country, for the Greek people, that is enough for me. Saving Greece from this crisis was the first thing on the agenda. We are now on a much more normalised road.

The structures in Europe in a globalising economy need to be modernised, need to be more integrated, need to be stronger.

But sovereign debt is a wider question not only in Europe but across the globe. While every country is a unique case, I think it's not an issue of countries acting on their own. We need a more coordinated strategy not only in Europe but around the world.

Despite the deep reforms we are making, traders and speculators have forced interest rates on Greek bonds to record highs.