Never close your lips to those whom you have already opened your heart.

One should forgive one's enemies, but not before they are hanged.

绿色发展不是选择题，而是必答题，我们要坚定不移地走绿色低碳发展之路。

“唯一真正有价值的是时间。”

The knowledge that you have emerged wiser and stronger from setbacks means that you are, ever after, secure in your ability to survive. You will never truly know yourself, or the strength of your relationships, until both have been tested by adversity. Such knowledge is a true gift, for all that it is painfully won, and it has been worth more than any qualification I ever earned.

The study of nature is a perpetual joy.

Innovation is the ability to see change as an opportunity - not a threat.