过去两个世纪最重要的政治发展是现代国家的崛起。
The most important political development of the last two centuries has been the rise of the modern state.
The best way to document a program is to document it.
I don't believe in luck, I believe in preparation.
The painting should be a fact, not a representation.
假设生活会非常艰难,然后问自己能否承受。如果答案是肯定的,你就赢了。