Politics is a highly tribal business.

Growth that lasts does not threaten our children's future. It recognises that our planet is a gift that must be cherished. That tomorrow is our responsibility as much as today.

Any government, of whatever composition, needs to mobilise opinion way beyond its own ranks in order to do the difficult things that it does.

I'm very lucky. I am one of those people who is able to go home, shut the front door and completely focus on the kids.

I didn't become leader to transform the Liberal Democrats into an enlarged form of the Electoral Reform Society. It's not the be all and end all for us. There are other very, very key ambitions in politics, not least social mobility and life chances, that I care about as passionately if not more.

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.

Politics is a highly tribal business.