You can't win with some people. If you're not in government, you're criticised for being not serious. If you are in government, you're criticised for wanting power. That's the Labour party's line of attack, and it's a bit ridiculous.

Many of our problems are home-grown. Gordon Brown regularly advised the rest of the world to follow his British model of growth. But the model was flawed. It led to the highest level of household debt in relation to income in the world.

I've always been comfortable working with women and I've had two happy marriages. Draw what conclusions you like from that.

I made friends with a boy who was a communist when I was 13 and that broadened my political views, but it also brought me into conflict with my father who was very Right-wing.

My late wife Olympia was Goan and I've been to India many times. I love the food there. We used to do our shopping in Southall, where you can find cheap but wonderful fruit like mangoes, vegetables and spices. I didn't do much of the cooking, as Olympia did a lot - I was the under-chef and did some of the chopping.

There was, of course, a global financial crisis. But our Labour predecessors left Britain exceptionally vulnerable and damaged: more personal debt than any other major economy; a dangerously inflated property bubble; and a bloated banking sector behaving as masters, not the servants of the people.

My time at Shell was a most valuable experience because it taught me to look at the world in a long-term way. Shell takes a 20-year view on events and plans for different scenarios. It makes you see the world as a kind of large matrix.