自由不是礼物，而是必须每天争取的成就。
Freedom is not a gift but an achievement that must be won every day.
在化学中，就像在生活中一样，最深刻的真理往往是最简单的。
在生命中寻找意义的努力是人类的主要动力。
解析：告诫人们要珍惜所得。
In coal mining, safety isn't just a priority—it's a core value.
国家是人类社会中最重要的机构，其强弱是社会成败的关键决定因素。
The past is always there, and it's always different every time you look at it.
爱就是试图理解对方。
Safety isn't just a policy, it's a culture that starts at the top.
Nature doesn’t care about your plans. It will test you, and you have to be ready.