The quality of a country's institutions is the single most important determinant of its long-term economic performance.
世界是一本书,不旅行的人只读了一页。
真实世界是最抽象的东西。
In the realm of theoretical physics, every discovery opens up new questions and challenges.
最好的领导者是那些倾听多于发言,并以诚信行事的人。
想要行善的人在门外敲著门;爱人的,看见门是敞开的。