【释义】挖井没挖到泉水，如同没挖；只差一步却没走到目的地，如同没走。【延伸】忙，可以，但是要忙得有结果，忙完了，人要有所成长。要在这个世界上获得成功，就必须坚持战斗到底，剑至死都不能离手。没有结果的努力，都是白费劲。

The landscape is the first architecture.

数学的真正力量在于它简化复杂事物的能力，使不可理解的事物变得可理解。

A good algorithm is like a good story: it has a clear beginning, middle, and end.

The problem of modern society is it turns the whole world into a school. Everybody's wearing jeans, everybody's the same. And yet, they're not. So there's a spirit of equality combined with deep inequality, which can make for a very stressful situation.