If our economies are to flourish, if global poverty is to be banished, and if the wellbeing of the world's people enhanced - not just in this generation but in succeeding generations - we must make sure we take care of the natural environment and resources on which our economic activity depends.

We must then build a proper relationship between the richest and the poorest countries based on our desire that they are able to fend for themselves with the investment that is necessary in their agriculture, so that Africa is not a net importer of food, but an exporter of food.

America knows it has got to deal with its deficit problems so that it, too, can promise it is making its proper and best contributions to the world economy.

I'm a great supporter of the European Union. I didn't support entry to the Euro, not because I'm against it in principle but because I didn't think it was economically right for Britain. But that doesn't make me any less pro-European.

No one should be held back from realising their potential by fears that they will not be able to afford to go to university or that they will graduate with unmanageable levels of debt.

I did maths for a year at university. I don't think I was very good at it. And some people would say it shows.

Each year India and China produce four million graduates compared with just over 250,000 in Britain.