The best teacher in life is experience.
任何政治制度的成功都取决于其在公民眼中产生合法性的能力。
The universe could have started in a very smooth and uniform state, and then evolved into the complex and structured cosmos we see today.
剖面图是建筑师最具揭示性的图纸。
最好的采石场不会留下伤痕,只有负责任的转变。