Diplomacy is not an end in itself if it does not advance the interests of the nation.

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。

What matters in life is not what happens to you but what you remember and how you remember it.

人は、自分が信じたいものを信じる。

政治理论研究不应局限于西方经验，而应拥抱全球视野。