知足常乐,终身不辱。
贪心不足蛇吞象,知足才能心安。  
"Innovation comes from thinking outside the box and challenging the status quo."
The past is a foreign country; they do things differently there.
Sustainability isn't an option anymore—it's a necessity for any business that wants to thrive in the 21st century.
只有服从自然,才能控制自然。