1, indomitable spirit of struggle: The article says that "he didn't back down, he dispelled the darkness with his enthusiasm", which reflects Fang Zhimin's indomitable spirit of struggle.

2. Lofty patriotic feelings: The article says that "his thoughts are full of national integrity and patriotic enthusiasm, and his actions are for national liberation and happiness", which reflects Fang Zhimin's lofty patriotic feelings.

3. Firm spirit of sacrifice: The article said that "his indomitable spirit finally brought him life", which reflected Fang Zhimin's firm spirit of sacrifice.

4. Firm revolutionary belief: The article says that "his belief is firm, his ideal is lofty and his pursuit is great", which reflects Fang Zhimin's firm revolutionary belief.