It is important for everybody to insure that the process will go on, that the ceasefire will hold. Of course, there is no ceasefire against Daesh [the Islamic State], Jabhat al Nusra, and Al Qaeda.

We've never declared war on anybody. We [Iran] defended ourselves against wars that were imposed on us. We have no desire to engage in confrontation with anybody.

I think we are making an assumption that that is the outcome of the negotiations. I think President Assad will be prepared to accept whatever the outcome of the intra-Syrian dialogue and the decision of the Syrian people is. But people are trying to decide and determine the outcome of the negotiation before even we agree to start the negotiations.

Wake up to the real world. Look at what's happening in the region. Look at where people are going, how people react to humiliation and marginalization. I do not think a few more votes is worth making this menace - that we all face - far more complicated. People have to wake up to that and respond to that, not politicize it.

I think the most important challenge that remains is this mentality in Washington that sanctions have been an asset, and some people want to find even an excuse to keep them or an excuse to reintroduce them. I don't know whether they've looked at the record of how sanctions actually produce exactly the opposite of what they wanted to produce.

Nobody thinks identically on Syria. But we share the same view with Russia that the future of the personalities in Syria will be determined by the people of Syria and not by people outside Syria.

So there are two separate tracks. One track is for the Syrian government and the opposition that is interested in a peaceful future of Syria to come together for national unity, for the political process. At the same time, it is a requirement for everybody to stop supporting the extremist groups, to stop allowing them safe passage, to stop allowing them to receive weapons, to stop allowing them to receive financial assistance, and to come together in actually fighting them.