(Zhuge Liang of the Three Kingdoms: In a gentleman's trip, you should be quiet to cultivate your self, frugal to cultivate your self, if you don't live, you will have no ambition, and if you don't live, you will have no distance. )

Profound knowledge, thirst for knowledge, good at thinking; God is quiet, wise and brave.

(A sentence in "Night Talk Around the Furnace": "I am knowledgeable and determined, and it is time for this character to rest assured before asking and thinking; God is quiet, wise and brave, and this character is the ability to do great things. " Dare to challenge if you have courage, and win if you have knowledge and wisdom. This is also the fundamental difference between "ordinary courage" and "foolproof courage" )