相对论不仅是一项科学成就,更是一种关于空间和时间的新思维方式。
外交是一门没有永久朋友,只有永久利益的学科。
We cannot be sure of having something to live for unless we are willing to die for it.
The best decisions are those that benefit both people and the planet.
保持微笑,这会让人好奇你一直在忙什么。