Pelo menos eu nunca vi uma ponte dessas com coroas de metal para prendê-la nos dentes adjacentes em vez de enxertá-lo na mandíbula... - Isaac Asimov

In fact" — and he reached up to rub his cheek with long, spare fingers — "with the combination of factors you handed me I don't quite see how she fit in the old Reality.

Consider that until now the power of trade has been underestimated. It has been thought that it took a priesthood under our control to make it a powerful weapon. That is not so, and this is my contribution to the Galactic situation. Trade without priests! Trade alone! It is strong enough. Let us become very simple and specific. Korell is now at war with us. Consequently our trade with her has stopped. But – notice that I am making this as simple as a problem in addition – in the past three years she has based her economy more and more upon the atomic techniques which we have introduced and which only we can continue to supply. Now what do you suppose will happen once the tiny atomic generators begin failing, and one gadget after another goes out of commission?

Not all persons would be equally believed, Demerzel. A mathematician, however, who could back his prophecy with mathematical formulas and terminology, might be understood by no one and yet believed by everyone.