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Khamenei made the remarks while addressing university students

"We should not trust an enemy who keeps smiling," he says

The next round of talks between Iran and world powers is scheduled for this week in Geneva

CNN —  

Iran may need only a month to produce enough weapons-grade uranium for a nuclear bomb, a U.S.-based anti-proliferation group says in a new assessment of Tehran’s enrichment program.

He made the remarks while addressing university students, the state-run Islamic Republic News Agency reported.

“I am not optimistic about these talks but, with God’s blessings, we shall not lose anything in these talks either,” he said. “This experience will enhance our nation’s mental capacity. If the talks succeed, so much the better. And if they don’t, that should mean that the country is standing on its own feet. We should not trust an enemy who keeps smiling and says it is willing to talk but at the same time tells us ‘all options are on the table.’”

It also comes after talks resumed on the program between Iran and six world powers – the United States, Russia, China, France, Germany and Britain – known as the P5+1.

Iran, whose economy is suffering severely under the U.S. and U.N. sanctions imposed because of its nuclear program, has long maintained that it is developing nuclear energy capabilities for peaceful purposes only.

The next round of talks between Iran and the P5+1 is scheduled to take place next month in Geneva. A statement after the previous round, last week, described the talks as “substantive and forward-looking.”