Societies advance through innovation every bit as much as economies do.

On the environment and climate change, I suspect that future generations will think there was too much timidity, too much fear of upsetting business. Basically, New Labour was very nervous about regulating business, or requiring it to do anything, even when there was a very clear social or environmental case for doing so.

Computing should be taught as a rigorous - but fun - discipline covering topics like programming, database structures, and algorithms. That doesn't have to be boring.

Cities simply don't have the powers they need to radically innovate in cutting obesity or the number of disaffected teenagers.

Spreading an idea is hard work.

All innovation is about letting go, saying goodbye to things to create space for the new.

I didn't much like being in Parliament physically. I found it a bit depressing. It's very dark and heavy. I like being out and about.