战争是一种精神现象。

The greatest economic transformations often begin with small, deliberate steps.

The greatest prosperity can exist only as the result of the greatest possible productivity of the men and machines of the establishment.

"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."

采矿业有责任让社区比我们发现时更好。

可持续发展的关键在于通过教育和创新不断改善人力资本。