Happiness is not the absence of problems, but the ability to deal with them.

"A book is a dream that you hold in your hands."

一个人需要相当的知识才能意识到自己的无知程度。

Profitability and environmental responsibility are not mutually exclusive—they go hand in hand when done right.

出自《论语·宪问篇》。遇到事情，不去抱怨上天，也不要去责备别人，应当能够扪心自问，好好地反省自己。