Since ancient times, people have divided the learning experience into three processes to motivate themselves or others. Among them, Wang Guowei cited three ancient sayings in Qing Dynasty to describe the three realms of scholars. The first realm is "last night, the west wind withered the green trees, climbing the stairs alone and looking at the horizon"; The second realm is "the belt is getting wider and wider, never regret it, and it is haggard for Iraq"; The third realm is "looking for him in the crowd, suddenly looking back, the man is in the dim light."
Among the three realms summarized by Wang Guowei, the first realm is the realm of learning and being excellent, and it is the great realm of "knowledge". The second realm is the realm of "doing", that is, persistently realizing lofty ideals. The third realm is the realm of "getting", and success comes naturally.