Mohammad Javad Zarif

In order to practice dialogue, you need to be able to set aside your assumptions and try to listen more than you want to talk. It's not always politically correct to be able to do that, but it can give you a better sense of the reality.

We hope that Saudi Arabia can come to terms with its neighbours, end the hostilities - which can only produce hatred in Yemen - and live peacefully with their neighbours. They cannot blame everything on Iran.

It is time for Iran and other stakeholders to begin to address the causes of tension in the wider Persian Gulf region. We need a sober assessment of the complex and intertwined realities here and consistent policies to deal with them. The fight against terror is a case in point.

The way you have bipartisan negotiations, you sit down across the table, as we did with Ted Kennedy, as I've done with many other members, and you say, 'OK, here's what I want, here's what you want. We'll adhere to your principles, but we'll make concessions.'