… is from page 460 of F.A. Hayek’s profound and important 1964 article “Kinds of Order in Society” (available without charge on-line here) as it appears in Liberty Fund’s 1981 single-volume collection of New Individualist Review:
In the order created by the market, the participants are constantly induced to respond to events of which they do not directly know, in a way which secures a continuous flow of production, a coordination of the quantities of the different things so that the even flow is not interrupted and everything is produced at least as cheaply as anybody can still provide the last quantities for which others are prepared to pay the costs. That it is an order which consists of the adaptation to the multitudinous circumstances which no single person can know completely is one reason why its existence is not perceived by simple inspection. It is embodied in such relations as those between prices and costs of commodities and the corresponding distribution of resources; and we can confirm that such an order in fact exists only after we have reconstructed its principles in our minds.