The most important part of teaching is to teach what it is to know.
教学最重要的部分是教导什么是知识。
变化是不可避免的，但成长是可选的。
Wall Street has too much wealth and political power.
世界是你的。
The great ideological battles between liberalism and communism, or between democracy and authoritarianism, have been replaced by a general consensus on the desirability of liberal democracy.
在这片未知的土地上，每一步都带来新的发现，而每一个发现都加深了神秘感。