I don't regret the things I've done, I regret the things I didn't do.
The spread of liberal democracy and the integration of the world economy have created a situation in which the major powers are no longer willing to risk war with one another.
"We don't inherit poverty from our parents; we inherit their fears."
在化学中,就像在生活中一样,有时你需要退后一步才能看到更大的图景。
采矿中的每一个挑战都是创新的机会。