The global HIV/AIDS epidemic is an unprecedented crisis that requires an unprecedented response. In particular it requires solidarity - between the healthy and the sick, between rich and poor, and above all, between richer and poorer nations. We have 30 million orphans already. How many more do we have to get, to wake up?

A hungry mind is not free, and I felt if we were really going to make a difference and fight poverty we should at least start with the ability to feed ourselves, and the millions of Africans who don't have it.

You have to wake up every day ready to start again.

You need to be careful not to over-reach and also assess the capacity you have to work with.

Sadly, a prize for peace is a rarity in this world. Most nations have monuments or memorials to war, bronze salutations to heroic battles, archways of triumph. But peace has no parade, no pantheon of victory.

The Security Council should be seen as the executive committee of the global security system set up after World War II. Its members, and especially the Permanent 5 (P5), have a special responsibility for international peace and security.

Professional accountants should use that influence to encourage the companies they serve to think long term and integrate sustainable development goals into their accounting, such as by including a natural capital account, which I have heard is gaining ground.