译文：结交朋友要始终如一，不要因为地位升降就中途分手。赏析：我们要结交知心朋友，不管我们的身份如何改变，对待朋友的态度都要矢志不渝。不能因为自己的名位高和钱财多就疏远朋友。

Prices are important not because money is considered paramount but because prices are a fast and effective conveyor of information through a vast society in which fragmented knowledge must be coordinated.

In the old world, you devoted 30% of your time to building a great service and 70% of your time to shouting about it. In the new world, that inverts.