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.

I want to see far more decisions taken far closer to the patients, the passengers and the pupils. Far more power for locally and regionally elected politicians who understand best the needs of their areas. And far more say too for the dedicated staff at all levels in health and education.

You learn to speak by speaking, to study by studying, to run by running, to work by working; in just the same way, you learn to love by loving.

Study how water flows in a valley stream, smoothly and freely between the rocks. Also learn from holy books and wise people. Everything - even mountains, rivers, plants and trees - should be your teacher.

Coming to understand a painting or a symphony in an unfamiliar style, to recognize the work of an artist or school, to see or hear in new ways, is as cognitive an achievement as learning to read or write or add.