If I advocate cautious optimism it is not because I do not have faith in the future but because I do not want to encourage blind faith.

In all this we can only move forward, if we work in a multilateral setting; and that also is another dimension of this – that is recognises the importance of multilateralism. As the citation says, “broadest international co-operation”. We can only win together or lose together, Marika. I think that’s something I have been saying for quite a while and you probably will hear me say more of that, as we go forward.

Our young should prepare to seek their fortunes in this golden age. It is silly to moan that properties and cars are going out of their reach. They will never be out of reach of those who seize their opportunities. Of course those on profit sharing schemes and stock options will do better than those on salaries. But even those on salaries will have their salaries double in the next 10 years of high growth. The big winners will be those who find a vein of gold and dig it out. But you have to work to find it and dig it out. Those who bemuse and befuddle themselves into believing the great opportunities are already behind them will regret it when they see their more discerning and perceptive contemporaries prosper.

In my opinion, the key to dealing with the future lies in knowing where you are, even if you can't know precisely where you're going. Knowing where you are in a cycle and what that implies for the future is very different from predicting the timing, extent and shape of the next cyclical move.

Amos and I shared the wonder of together owning a goose that could lay golden eggs – a joint mind that was better than our separate minds. … Some of the greatest joys of our collaboration-and probably much of its success – came from our ability to elaborate each other's nascent thoughts: if I expressed a half-formed idea, I knew that Amos would be there to understand it, probably more clearly than I did, and that if it had merit he would see it. Like most people, I am somewhat cautious about exposing tentative thoughts to others – I must first make sure that they are not idiotic. In the best years of the collaboration, this caution was completely absent.

I got quite nice results in my one-question studies, but never wrote up any of the work, because I had set myself impossible standards: in order not to pollute the literature, I wanted to report only findings that I had replicated in detail at least once, and the replications were never quite perfect. I realized only gradually that my aspirations demanded more statistical power and therefore much larger samples than I was intuitively inclined to run. This observation also came in handy some time later.