German Finance Minister Wolfgang Schaeuble said that Greece should continue to overcome difficulties by standing on its own foot to stay inside the eurozone in the future, even if a third round of bailout program would be declined for the debt-afflicted southeast European country.

"Greece should remain in the eurozone," Schaeuble said during a German radio interview in the morning hour on Wednesday, adding that speculation about a conjecture on the so-called "Grexit" from the 17-country common currency zone was "not helpful."

But he went on to emphasize that "the costs for Greece are already very high and therefore we cannot have a new programme for Greece."

Greece received its first rescue package worth 110-billion-euro (138-billion U.S. dollars) in May 2010, and the second bailout package of 130 billion euros, combined with an additional debt erasure of some 100 billion euros in October 2011, by vouching the implementation of tough austerity measures to streamline its overburdened budgetary finance.

Now, Greece is under mounting pressure to show to the international creditors, notably the "troika", that it had achieved substantial progress in spending-cuts and the obligatory economic structural reforms to keep fresh its capital-flow in the new tranche of this bailout.

The future rescue efforts would hinge on the report by the troika, which is due to be released in October, according to Schaeuble.

Looking ahead into the future, the German financial minister expressed his optimism that "the euro would become a little bit more stable and less nervousness on the financial markets."

"However we have lost the market's confidence which waned away so quickly, and regaining it back is just particularly difficult and need more time," he said.

"So the situation would not be in completely calm waters," Schaeuble warned, noting any policy-making and decision-taking at the whole European level would never be easy under the current mechanism.

Xinhua