Ban Ki-Moon

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.

We have international standards regulating everything from t-shirts to toys to tomatoes. There are international regulations for furniture. That means there are common standards for the global trade in armchairs but not the global trade in arms.

Weapons of mass destruction violate more than individual lives - they cross international borders and jeopardize all people. They also drain resources that could be used instead for medicines, schools and other life-saving supplies. We must come together with even greater determination to prevent a WMD nightmare.

Throughout human history, in any great endeavour requiring the common effort of many nations and men and women everywhere, we have learned - it is only through seriousness of purpose and persistence that we ultimately carry the day. We might liken it to riding a bicycle. You stay upright and move forward so long as you keep up the momentum.

By including children with different learning abilities in mainstream and specialized schools, we can change attitudes and promote respect. By creating suitable jobs for adults with autism, we integrate them into society.

Freedom is a timeless value. The United Nations Charter calls for encouraging respect for fundamental freedoms. The Universal Declaration of Human Rights mentions freedom more than twenty times. All countries have committed to protecting individual freedoms on paper - but in practice, too many break their pledge.

Around the world, climate change is an existential threat - but if we harness the opportunities inherent in addressing climate change, we can reap enormous economic benefits.

Schools connect children to their communities. Jobs connect adults to their societies. Persons with autism deserve to walk the same path.

It is important that the right of Israel to exist should be respected and also the viable Palestinian authorities, in terms of political and financial situation, be supported so that both can live side by side in peace and security. That is a two-state solution.

Pacific Islands are among those that contribute least to global warming, yet suffer most.

Many say our world is at a tipping point. If we do not act together, if we do not act responsibly, if we do not act now, we risk slipping into a cycle of poverty, degradation, and despair.

Every day, we at the United Nations see the human toll of an absence of regulations or lax controls on the arms trade. We see it in the suffering of civilian populations trapped by armed conflict or pervasive crime. We see it in the killing and wounding of civilians - including children, the most vulnerable of all.

You are here to step into the shoes of UN ambassadors - to draft resolutions, to plot strategy, to negotiate with your allies as well as your adversaries. Your goal may be to resolve a conflict, to cope with a natural disaster or to bring nations together on an issue like climate change. You may be playing a role, but you are also preparing for life. You are acting as global citizens.

As I prepare for my second term as Secretary-General, I am thinking hard about how we can meet the expectations of the millions of people who see the U.N.'s blue flag as a banner of hope. We have to continue our life-saving work in peacekeeping, human rights, development and humanitarian relief.

Our work for human dignity is often lonely, and almost always an uphill climb. At times, our efforts are misunderstood, and we are mistaken for the enemy. There has been a clear erosion of respect for U.N. blue and our impartiality.

Saving our planet, lifting people out of poverty, advancing economic growth – these are one and the same fight.

Countries with more gender equality have better economic growth. Companies with more women leaders perform better. Peace agreements that include women are more durable. Parliaments with more women enact more legislation on key social issues such as health, education, anti-discrimination and child support. The evidence is clear: equality for women means progress for all.

Nuclear accidents anywhere can affect people everywhere.

When food prices surge, poor families suddenly find themselves unable to afford enough nutritious food. If this happens during the first thousand days of a child's life, the damage to his or her body and mind can be permanent.

Whether addressing immediate crises or building long-term foundations of peace, the United Nations will remain committed to solutions that advance the global good.

Planet Earth is our shared island, let us join forces to protect it