“All war represents a failure of diplomacy.” — Tony Benn

I see myself as an old man and an unqualified teacher to the nation. I think being a teacher is probably the most important thing you can be in politics.

Age does take it out of you, and I haven't the energy I had before. Sometimes I have breakfast and sit in this chair, and I wake up and it is lunchtime. In the past, the idea of sleeping through a morning would have horrified me, but you have to accept the limitations that old age imposes on you.

Normally, people give up parliament because they want to do more business or spend more time with family. My wife said 'why don't you say you're giving up to devote more time to politics?'. And it is what I have done.