Pluralism matters because life is not worth living without new experiences - new people, new places, new challenges. But discipline matters too; we cannot simply treat life as a psychedelic trip through a series of novel sensations.

There's nothing wrong with a plan, but remember Von Moltke's famous dictum that no plan survives first contact with the enemy. The danger is a plan that seduces us into thinking failure is impossible and adaptation is unnecessary - a kind of ‘Titanic' plan, unsinkable (until it hits the iceberg).

Trying to be able to have, let's say, more than three partners was absolutely impossible, at least for my own relationships.

Economics spreads happiness.

How did the economy produce all these amazing things that we have around us - computers and cell phones and so on? There were a bunch of ideas, and the good ones grew and prospered. And the bad ones were pretty ruthlessly weeded out.

A lot of international companies invest in the U.K. as a base for doing business with the rest of the European Union.

There is much more to life than what gets measured in accounts. Even economists know that.