释义：他视空气为宇宙间一切事物相互联系的媒介和纽带。
孔子说季氏：“他用天子的舞蹈阵容在自己的庭院中舞蹈，这样的事可以容忍，什么事不能容忍？”
进步的艺术是在变化中保持秩序，在秩序中保持变化。
In mathematics, the art of proposing a question must be held of higher value than solving it.
The boldness of his mind was matched by the candor of his speech.