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Man is the measure of all things.

最可持續的產品是已經存在的產品。

The life of the law has not been logic; it has been experience.

The coal industry must unswervingly follow the path of safe, efficient, clean, and low-carbon development.

If oxen and horses and lions had hands and could paint with their hands and produce works of art as men do, horses would paint the forms of the gods like horses, and oxen like oxen, and they would make their bodies in accordance with the form that each species itself possesses.