数学的力量来自于它的抽象和概括能力,将具体问题转化为普遍真理。
中国的崛起和俄罗斯的复兴挑战了自由民主是唯一可行的政府形式的观念。
We see each building as a gift to the city.
Sustainability isn't a choice anymore—it's a necessity for survival in the aquaculture industry.
最好的故事会为孩子的想象力留出成长的空间。
The function of thought is to guide successful behavior.