But rock art also has a practical value for researchers and let's start by considering why that is.

但岩石艺术对研究人员来说也有实用价值，让我们先来看看为什么会那样。

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Art can connect culture with commercial products in a way that not many other things can; art generates money and holds significant emotional and cultural value within communities.

艺术可以将文化与商业产品联系起来，这是其他事物无法做到的；艺术还可以赚钱，在社区内拥有重要的情感和文化价值。

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On the one hand, it would be foolish to deny the value in high callings such as philosophy, literature, art, and other allegedly "useless" vocations.

一方面来说，像哲学、文学、艺术和其他一些被称为“无用”的崇高职业，否认它们的价值是愚不可及的事。

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And what does their relationship tell us about how we should value art and each other?

WSJ: The Metaphysical Riddles of Abbas Kiarostami

Gove's exams still place no value on creative subjects like art, music and drama, and no value on practical subjects like engineering, design and technology and construction.

BBC: Computer science part of English Baccalaureate

Each of the book's chapters is written by a locally based specialist (the authors include auctioneers, academics, consultants and dealers) who examines a country or region's art market history in terms of taste, fashion, value, art types, subjects, sales prices and records.

WSJ: Book Is a Collector's Item