合作而非竞争，才能解决世界最大的环境挑战。
Collaboration, not competition, will solve the world’s biggest environmental challenges.
教学不是注满一桶水，而是点燃一把火
The best art comes from pain.
The poor often lack the information needed to make good choices, and when they do have it, they often don’t trust it.
To do mathematics is to engage in an act of creation and discovery simultaneously.