Educator Mr. Huang Yanpei wrote four sentences to his son: "Harmony is like spring breeze, but it is like autumn frost;" Take money as an example, in the outer circle. "The' round' here generally refers to' softness', which is by no means smooth and cunning, but a kind of tact, generosity and accommodation, which is kind to people and improvisation;" "Fang" refers to the principle, which means founder, integrity, angular, tall and straight, steady, well-behaved, not rigid and conservative. How to combine principle with flexibility is a major topic in life. Meng Jiao, a poet in the Tang Dynasty, wrote this way of life into his poems: "All customs are walking around and walking alone." It is his recognition of the "outer circle and inner side" of being a man.
1939, Huang Da was able to take the formal entrance examination for studying abroad and prepare to go to England. Before leaving, Huang Yanpei stuck to his motto all his life: "Truth should be found in truth, truth should be found in things, and words must be done." Added a few words, calligraphy to Huang Daneng. This is the famous 36-word proverb: "Don't be idle, don't panic; Keep your promise, be firm and have no desire; Harmony is like spring breeze and autumn frost; Take money as an image, and the outer circle is inside. "