Innovation in mining technology isn't an option—it's an obligation we owe to both our workers and the environment.
The very existence of libraries affords the best evidence that we may yet have hope for the future of man.
The future belongs to those who are willing to adapt and evolve.
You have to keep thinking about what you can do to make the world a better place.
A public-opinion poll is no substitute for thought.
我们创造的空间必须是灵活的、适应性强的和充满活力的。
你的冰无法冻结是因为我。
The state of nature has a law of nature to govern it, which obliges every one: and reason, which is that law, teaches all mankind, who will but consult it, that being all equal and independent, no one ought to harm another in his life, health, liberty, or possessions.