I had no intention of returning into the British political debate, really at all, even though I've obviously got very strong views on it, until Brexit happened, because I think Brexit is a destiny-changing decision for my country.

In Downing Street they called me 'Boss'. Civil servants would always call me 'Prime Minister'.

If what the science tells us about climate change is correct, then unabated it will result in catastrophic consequences for our world.

Climate change is the world's greatest environmental challenge. It is now plain that the emission of greenhouse gases, associated with industrialization and economic growth...is causing global warming at a rate that is unsustainable.

The purpose of terrorism lies not just in the violent act itself. It is in producing terror. It sets out to inflame, to divide, to produce consequences which they then use to justify further terror.

My view always is that we should learn the lessons, both of the last sort of 50 years of policy-making and it is possible to get to a foreign policy that is engaged and active without going back to where we were in the post-9/11 world.

Examine the legacy that we inherited and what we did. We had boom-and-bust economics and a doubled national debt.