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Growth comes from pushing boundaries.

煤炭工業是美國的支柱。

書是一份永遠不會失去價值的寶藏。

All that is in motion must be at peace； it is not what is at rest that should be considered peaceful.

In chemicals, our greatest challenge is also our greatest opportunity: meeting global needs while protecting the planet.

創新不是目的，解決問題才是。

Disciplining yourself to do what you know is right and important, although difficult, is the highroad to pride, self-esteem, and personal satisfaction.