I don't lead a particularly Bohemian existence. The main criterion for me is not to be judgemental of other people so long as what they do is not harmful or offensive to others.

My dad's side of the family had lots of artists and musicians. There's an emotional, quite sentimental quality to Slavic culture. It's very open, it loves art, it loves music, it loves literature. It's very warm, it's very up, it's very down. I would celebrate that.

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.

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.

Actually, the curious thing is that the more you become a subject of admiration or loathing, the more you're examined under a microscope, the distance seems to open up between who you really are and the portrayals that people impose on you.

Grown-up politicians talk to each other across party lines. Over the last few weeks I have had lengthy conversations with Ed Miliband, David Miliband, with Tony Blair, with Peter Mandelson... talking about Europe, talking about political reform.

The Labour Party has become consumed by collective bile towards... the Liberal Democrats. That portrays a rather nasty arrogance.