Does the questioner want to ask "What are Sima Yi's famous quotes and classic quotes"? It is easy to be aggressive, but difficult to balance. According to information from Baidu Library, Sima Yi's classic sayings include: It's easy to be aggressive, it's hard to balance, it's easy to kill, it's hard to save, etc. Sima Yi was smart and resourceful since he was a child, erudite and adhering to Confucianism. Because the Han Dynasty was controlled by the Cao family, Sima Yi once refused the official position granted by Cao Cao.