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.

The Supreme Court's most conservative Justices have presented themselves as great respecters of precedent and opponents of 'judicial activism' - of judges using the Constitution to strike down laws passed by the elected branches of government. If they are true to those principles, they should uphold rent control.

As we talk with candour, we open the doors to new possibilities and new areas of cooperation in advance in democracy, in combating terrorism, in energy and environment, science and technology and international peacekeeping.

Joy doesn't betray but sustains activism. And when you face a politics that aspires to make you fearful, alienated and isolated, joy is a fine initial act of insurrection.

The fact is that democracy anywhere in the world, including in the United States, is not something that comes easy. And yet, we are committed to it, and equality and democracy are the only ways in the long run that Jews will be safe in the Middle East.