True freedom is not about doing what you want, but about not doing what you don't want to do.
My parents taught me to never give up.
谷物生产的创新不仅关乎技术,更关乎思维方式的转变。
抽象的力量使数学能够超越物理现实的限制。
市场设计是一个持续的实验——今天有效的明天可能就需要调整。