Life is like riding a bicycle. To keep your balance, you must keep moving.

【释义】：教导媳妇要在刚过门时开始，教育孩子要从婴儿时期抓起。  

Development economics is ultimately about improving people's lives.

The secret of all effective advertising is not the creation of new and tricky words and pictures, but one of putting familiar words and pictures into new relationships.

"In the middle of difficulty lies opportunity."

The greatest proof of our intellect is our ability to perceive our own limitations.

建筑是对空间的深思熟虑的创造。

The eyes of others our prisons; their thoughts our cages.