Tell me about the relationship between Sima Yi and Zhuge Liang, and how Sima sees Zhuge.

They are natural rivals. Zhuge Liang is slightly better than Sima Yi in military politics, but he is smarter than Zhuge Liang in employing people. Zhuge Liang can be said to be exhausted, because Liu Bei gave Zhuge Liang the future of Shu Han, but Sima Yi was different. He is a veteran of Cao Cao, Cao Pi and Cao Rui, but he lives well. He didn't come forward at the end of the Eastern Han Dynasty, but became a chief secretary under Cao Cao. Until the death of Jia Xu, the sage of Wei, no one could stop Zhuge Liang from replacing the soldiers of the Northern Expedition, but he lived more comfortably and safely than Zhuge Liang, and lived longer than Zhuge Liang because of his way of handling affairs. Zhuge Liang also made Sima Yi suffer a lot in the military, but Sima Yi learned to persist. As long as he persists, Zhuge Liang can do nothing about it himself.