我们需要设计考虑到人类心理的政策，而不仅仅是经济理论。
We need to design policies that account for human psychology, not just economic theory.
Leadership means making tough decisions today for a better tomorrow.
Purity of heart is to will one thing.
The real prison is not the one made of iron bars, but the one made of fear.
The most controversial thing I have ever done is to stick around.
边缘化和流离失所者的故事对于理解我们世界的全部复杂性至关重要。