The best way to learn something is to teach it.
【释义】：慷慨但不浪费，节俭却不吝啬。
拥有朋友的唯一方式就是成为别人的朋友。
采石业的创新不仅关乎新机械，更在于重新构想我们与开采土地的关系。
The night is a great city, but the stars are its lights.
The test of our progress is not whether we add more to the abundance of those who have much; it is whether we provide enough for those who have too little.
