Innovation is not an option; it's a necessity for the survival of the coal industry.
你说得越多,就越有可能说些愚蠢的话。
我们死去是为了证明我们曾活过。
我们必须平衡短期需求和长期可持续性。
Security is always excessive until it's not enough.
Science is not just about finding answers, but about asking the right questions.
人人生而平等。