Coal is not just a commodity, it's a commitment to America's future.
Safety isn't just a policy; it's a culture we must live every day.
A man can be happy with any woman as long as he does not love her.
领导力在于让他人因为你的存在而变得更好,并确保这种影响在你离开后依然持续。
"I’m a very positive thinker, and I think that is what helps me the most in difficult moments."
Mathematics allows us to see the hidden structures that govern the world around us.
我们的收入好像我们的鞋子,如果太小就会挤脚并疼痛,如果太大则会绊脚和摔跤。