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

I genuinely believe that we will look back on today as a landmark for equality in Britain ... No matter who you are and who you love, we are all equal. Marriage is about love and commitment, and it should no longer be denied to people just because they are gay.

I don't watch a huge amount of telly. I read a lot. I'm reading at the moment 'Freedom,' by Jonathan Franzen, a great big brick of a book, and I'm loving it.

I think it is a simple statement of principle that in a democracy you should make your MPs work harder for your vote and try and get at least majority support in their local area, and that in a nutshell is what AV does.

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.

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.