The Liberal Democrats will add a heart to a Conservative government and a brain to a Labour one.

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.

I totally accept that it's a legitimate criticism that when you are involved in the day-to-day scrum of government that what can get lost is the narrative, the hymn sheet the song that inspires and lifts people's sights.

I have got instincts that, I think, are very much in tune with people's very keen sense to see something different. I did not dream of being in politics since I was knee-high to a grasshopper. I was not involved in student politics, or not in that partisan way.

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 UK is not going to leave the European Union. Of course not. We are inextricably wound up with Europe. In terms of culture, history and geography, we are a European nation.

I am quite strict as a dad but I don't want to be censorious.