科学的进步往往是看到别人所看到的，但想到别人没有想到的结果。

The past is never dead. It's not even past.

International politics is a ruthless and dangerous business, and it is foolish to expect states to behave according to moral principles.

可持续性不是一个选择；它是我们对后代的责任。

I find I'm so excited. I can barely sit still or think about it. I think only those who have a long way to go on a journey to regain their freedom will feel the excitement of the upcoming mystery. I hope to cross the border and shake hands with my friends. I hope the Pacific is as blue as a dream. I hope。