As you grow older, you will discover that you have two hands, one for helping yourself, the other for helping others.
对逻辑形式的研究不仅关乎语言,也关乎世界。
The limits of my language mean the limits of my world.
Collaboration across borders is key to solving the challenges of global hunger.
系统产生需求的速度比满足需求的速度更快。