For amateur golfers, I think one of the biggest mistakes is to model their play on professionals.

If you're trading individual securities, you're almost certainly making a mistake. Because most professional managers can't outperform their benchmarks, and there's little reason to think that individuals can.

Countries all around the world, starting with the U.K., have started behavioural insight teams, often referred to as nudge units. And they seem to be doing lots of good.

There can be legal conflicts over whether registering intent is enough to qualify you as an organ donor or whether a doctor must still ask your family's permission.

Dialogue between people of differing views is critical for fostering understanding in a democracy.

A constant stream of 'free' money is a perfect way to keep an inefficient or simply bad government in power. As aid flows in, there is nothing more for the government to do - it doesn't need to raise taxes, and as long as it pays the army, it doesn't have to take account of its disgruntled citizens.

A politician and a government should be judged by one way only: on the record of what you do or did, not on what you say.

How can any government arrange sensible healthcare provision for citizens when the migratory flow is so large, with absolutely no power or control over the quantity coming in every year?