International politics is a brutal and unforgiving arena, where states constantly strive to maximize their power and security.

图书馆是一个过去、现在和未来相遇的地方。

可持续性不仅仅是一个流行词，它是我们行业未来的基础。

The only thing that can make you a hero is your heart.

Hope is the most beautiful people have, as long as they do not give up,hope will always be accompanied by.

人们算计太多，思考太少。