One possible strategy in dealing with the so-called “Adam Smith Problem” is to probe the architectural unity of his two major works, The Theory of Moral Sentiments and the Wealth of Nations. The architectural elements of a theory consist of premises and perspectives chosen, processes and mechanisms described, and results obtained. In this essay, I trace in the Wealth of Nations the architectural building blocks as known from The Theory of Moral Sentiments, by analogy, all the way up to the Impartial Spectator. The key challenge of this thought exercise is to not simply carry over the ethical categories of The Theory of Moral Sentiments to the Wealth of Nations, but to remain entirely within its economic framework. There is no explicit mention of the Impartial Spectator in the Wealth of Nations, but one can find his counterpart in connection with prudence, the dimmed-down self-regarding virtue that connects the two books and drives much of the action in the economic realm. Specifically, it is the long-sightedness of prudence, that is, the consideration of the consequences of one’s economic actions on oneself and others over a longer time-horizon, that allows for an analogy to the Impartial Spectator procedure. Just as the Impartial Spectator from The Theory of Moral Sentiments is the result of spinning off from one’s person an imagined disinterested, more objective judge of one’s conduct, the unnamed Long-sighted Spectator of the Wealth of Nations would be conjured up by the economic agent to ensure better judgment and sustainable economic behavior over time.