The key to success in research is to focus on fundamental problems that have long-term impact.
研究成功的关键是专注于具有长期影响的基础问题。
Never risk more than you can afford to lose.
Development economics is ultimately about improving people's lives.
学校应该是一个微型社区,一个萌芽中的社会。
真正的历史学家是真理的战士。