London's greatest strength is our diversity, and it's wonderful to see Londoners celebrating our capital's different traditions, determined to stand up to division.
I was fully aware of the challenges facing London before I was elected as mayor, but I didn't anticipate the issue that is likely to define my time as mayor - Brexit.
Education is important even beyond the bounds of the opportunities it gives to the individual; it is a crucial and basic requirement for ensuring effective democracy and human rights.
More than 300 languages are spoken in London. Religions are freely practiced. Rich and poor live on the same street, side by side. We've actually escaped many of the most difficult problems - integration and community cohesion.
My experience in relation to taking on the preachers of hate was saying to them it's compatible being British, being Western, being Muslim.
Betting shops have a big impact on encouraging on-street drinking and can often become a centre for disorder and anti-social behaviour.
There is no manual on how to run a global city like London. But I'm hugely proud of what we've been able to achieve in just the first year.
All Western cities face significant challenges on social integration. Our populations are booming, but social integration is not keeping pace. Rapid growth is a sign of our success, but it also puts stress on housing, infrastructure - and on communities.
I never understood how much running changes your life. I'm now obsessed. When not trying to beat my personal best, I'm talking to other people about theirs, reading training advice or eating the perfect balance of carbs and protein.
Legal aid gets a bad press. Some rail against handing taxpayers' money to criminals; others attack fat cat lawyers, while some argue that we spend far more on legal aid than other countries. But let's get some facts straight: saying that legal aid is just about criminals is wrong - most goes to people before any decision is taken on their guilt.
When I was growing up, anyone who wasn't white was black. It meant all of us. Though when I was at university, we started to be called Asians.