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Modern quarrying must marry the wisdom of geology with the innovation of engineering.

我們生產(chǎn)的每一件塑料制品都應(yīng)該有明確的再利用或回收路徑。

The text is a tissue of quotations drawn from the innumerable centers of culture.

Happiness in this world, when it comes, comes incidentally. Make it the objet of pursuit, and it leads us a wild-goose chase, and is never attained. Follow some other object, and very possibly we may find that we have cought happiness without dreaming of it.

The dead are not powerless. Dead, did I say? There is no death, only a change of worlds.

The only real mistake is the one from which we learn nothing.