On this day, we gather because we have chosen hope over fear, unity of purpose over conflict and discord.

No development strategy can be based only upon what comes out of the ground, nor can it be sustained while young people are out of work.

Everybody potentially can make the claim that we should all be treated fairly.

We won't apologise for our way of life, nor will we weaver in its defence, and for those who seek to advance their aims by inducing terror and slaughtering innocents, we say to you now that our spirit is stronger and cannot be broken, you cannot outlast us, and we will defeat you.

Don't get cynical. Don't ever think you can't make a difference.

With the world's unprecedented inspections and access to Iran's program, we'll know if Iran ever tries to break out.

If we're going to prevent large parts of this Earth from becoming not only inhospitable but uninhabitable in our lifetimes, we're going to have to keep some fossil fuels in the ground rather than burn them and release more dangerous pollution into the sky.