To measure the success of our societies, we should examine how well those with different abilities, including persons with autism, are integrated as full and valued members.

One of the main lessons I have learned during my five years as Secretary-General is that broad partnerships are the key to solving broad challenges. When governments, the United Nations, businesses, philanthropies and civil society work hand-in-hand, we can achieve great things.

We have seen in the past where leaders have not been open-minded or have not been flexible. That's why the people came out to the streets and shouted and chanted for more reforms and more freedoms.

Three decades into this crisis, let us set our sights on achieving the "three zeros" zero new HIV infections, zero discrimination and zero AIDS-related deaths.

Let us take advantage of the opportunities presented by climate action and lay the foundations for a more prosperous and secure future for all

Nuclear terrorism is one of the most serious threats of our time. Even one such attack could inflict mass casualties and create immense suffering and unwanted change in the world forever. This prospect should compel all of us to act to prevent such a catastrophe.

The international community cannot accept that whole communities are marginalized because of the color of their skin. People of African descent are among those most affected by racism. Too often, they face denial of basic rights such as access to quality health services and education. Such fundamental wrongs have a long and terrible history.