We begin with the hypothesis that any subject can be taught effectively in some intellectually honest form to any child at any stage of development.

历史的进程是自由的缓慢行进。

市场变化莫测，我们要保持敏锐的洞察力，及时调整战略，抓住机遇。

Every technological breakthrough is a challenge to the limits.

Sustainability in mining is not an option—it's a necessity for our future.