没有什么比独立和自由更宝贵的了。

"I don't post everything, but what I do post is a piece of my heart."

2004年夏天从波尔图来到伦敦，出席俱乐部为他安排的记者招待会所说。

Innovation is the key to staying ahead in business.

Randomized evaluations can help us understand what works and what doesn't in development.