For far too long the world's poorest people have seen no benefit from the vast natural resources in their own backyards. It is time to end the injustice where ordinary people are silent witnesses, left to suffer without basic services, as the profits from their countries' assets are hidden and plundered by corrupt regimes.

I totally rule out any arrangements with the SNP — in the same way I rule out any arrangements with Ukip - because there is no meeting point for me with one party that basically wants to pull our country to bits and another party that wants us to pull out of the EU. I would never recommend to the Liberal Democrats that we help establish a government which is basically on a life support system, where Alex Salmond could pull the plug any time he wants.

Do I get up every morning and ask: am I doing the things that I believe in and am I doing them for the best possible motives? Yes. Unambiguously yes.

On the BSkyB bid, Rupert Murdoch is now in town in London seeking to sort things out. I would simply say to him, look how people feel about this. Look how the country has reacted with revulsion to the revelations. So do the decent and sensible thing and reconsider, think again, about your bid for BSkyB.

[All governments] get into a rut where every potentially good story turns into a bad one.

One thing I have frankly decided is that when it comes to political reform we have two conservative parties in British politics. Both the Labour and Conservative parties have constantly and repeatedly failed to honour promises they have made about reforming, cleaning, modernising our clapped-out system.

The Liberal Democrat Party and the Conservative Party come at things very differently when it comes to Europe. When it comes to political reform, we have a much greater tradition in the Liberal Democrats of social justice and fairness than the Conservatives do.