政府开支的第一条规则：为什么只建一个，当你可以用两倍的价格建两个时？
Good market design aligns individual incentives with social efficiency.
Collaboration between governments, companies and civil society is essential to achieve our climate goals.
Your so-called boss may own the clock that taunts you from the wall, but, my friends, the hour is yours.
Humanity's greatest enemy is itself.