I refuse not to have a sense of humour.

I am a socialist, a believer in rational thought and the rule of law.

I go all around London advocating lesbian and gay rights.

To tackle climate change you don't have to reduce your quality of life, but you do have to change the way you live

I don't work hard enough. If I had worked harder I might have been prime minister.

Well, on lots of small things we could have done better, but on all the big things we called it right. You should make less mistakes as you get older, and I became a councillor back in 1971, so if by this stage in politics I'm making lots of big mistakes, then I shouldn't be here.

I've always told the truth. I've often been wrong - but I've never knowingly lied. Not in public life. Because I don't see the need to.