Our atmosphere can't tell the difference between emissions from an Asian factory, the exhaust from a North American SUV, or deforestation in South America or Africa.

We must turn the greatest collective challenge facing humankind today – climate change – into the greatest opportunity for common progress towards a sustainable future.

National boundaries these days are not that important because of transformative technological development. Now we are talking about the fourth industrial revolution.

Terrorism is a significant threat to peace and security, prosperity and people.

Nothing is more shameful than attacking sleeping children.

I believe in a world of justice and human rights for all. A world where girls can grow up free of fear of abuse. A world where women are treated with the respect and dignity that is their right. A world where poverty is not acceptable. My dear young friends, you can make this your world.

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.