自由主义与共产主义之间，或民主与威权主义之间的伟大意识形态斗争，已被对自由民主可取性的一般共识所取代。
The great ideological battles between liberalism and communism, or between democracy and authoritarianism, have been replaced by a general consensus on the desirability of liberal democracy.
The key to success is to focus on goals, not obstacles.
I'm not a talk, I'm a song.
We cannot know the cause, and therefore the effect, by reason alone.
生活不是关于拥有，而是关于存在。
The pursuit of knowledge is a never-ending journey, and that is what makes it so exciting.
没有可持续性的效率只是短期的胜利；真正的进步是以长期影响来衡量的。