Iran's supreme leader Ayatollah Ali Khamenei said that he endorses "heroic flexibility" in dealing with other countries, Tehran Times daily reported on Wednesday.

Khamenei made the remarks during a meeting with some commanders and veterans of Iran's Islamic Revolution Guards Corps (IRGC) on Tuesday.

Khamenei said that he endorses "wise" and "correct" measures in domestic and foreign policies, noting "I agree with what I called heroic flexibility ... because this move is very good on some occasions and is necessary."

However, he added in being flexible, a hero should not forget the "nature" of his opponent and objectives.

The remarks comes ahead of moderate President Hassan Rouhani's attendance in the upcoming UN General Assembly in New York, where he is expected to make a speech about Iran's latest positions on a number of issues that the country is involved in.

His words will be significant as the Islamic republic is preparing for the resumption of its talks with some world powers over the country's nuclear drive.

Earlier, Iran's new president announced that his administration would follow the policy of "constructive interaction" with the world, and his nuclear negotiation team would conduct "serious talks" with the powers.

Western states have reacted cautiously toward Iran's recent stances, though they have welcomed Iran's softer tone after eight years of hardline positions under former President Mahmoud Ahmadinejad.

Iran is under substantive sanctions and diplomatic pressures by the United States and its allies over its sensitive nuclear program.

The West suspects that Iran's nuclear enrichment activities may result in developing nuclear weapons, an allegation denied by the Islamic republic.

Despite the signals of "flexibility" by Tehran, Iranian officials unanimously have insisted on the nuclear rights of the country, including the enrichment activities, pursuant to the international regulations.