You are only as young as the last time you changed your mind.
教师是学校里最重要的师表，是直观的最有教益的模范，是学生的最活生生的榜样。
The Internet is the first thing that humanity has built that humanity doesn't understand, the largest experiment in anarchy that we have ever had.
以往的事过去了便不再重提，现在的事做一件有一件的功劳，未来的事情省一件便省去许多麻烦。
Your growth as a conscious being is measured by the number of uncomfortable conversations you are willing to have.
Diplomats should possess flexibility and adaptability to respond to rapidly changing international circumstances.