"Nuclear tests poison the environment - and they also poison the political climate. They breed mistru..." — Ban Ki-moon

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

Border strengthening is effective, but not if done in isolation. We also need to give priority to establishing public institutions that deliver a sustained level of security and justice for citizens. Border security can never come at the expense of migrants' rights. Nor can it be used to legitimize inhumane treatment.

Strangely, charity sometimes gets dismissed, as if it is ineffective, inappropriate or even somehow demeaning to the recipient. 'This isn't charity,' some donors take pains to claim, 'This is an investment.' Let us recognize charity for what it is at heart: a noble enterprise aimed at bettering the human condition.

We must eliminate all nuclear weapons in order to eliminate the grave risk they pose to our world. This will require persistent efforts by all countries and peoples. A nuclear war would affect everyone, and all have a stake in preventing this nightmare.