Zhang Liang's retirement and later peaceful life were not just because Liu Bang and Lü Hou did not want to kill him, but in the final analysis, Liu Bang and Lü Hou did not have the need to kill him.
Zhang Liang was originally a Korean nobleman during the Warring States period, but because qin destroyed Korea, Zhang Liang became a slave to the subjugation of the country. The world knows that Jing Ke stabbed the King of Qin, but Zhang Liang of South Korea also staged a "Hedgehog Qin" activity in order to avenge the country. Although the assassination attempt of the King of Qin this time, Zhang Liang also became famous through this trip and became a well-known patriot in the mouth of the people. Later, due to coincidence, Liu Bang and Zhang Liang worked together to survive all the difficulties and dangers, and finally joined forces to build the "Great Han Dynasty" with strong significance in Chinese history.

Zhang Liang's motives
Regardless of whether this motive is true or not, we can understand that Zhang Liang joined Liu Bang's camp in the early years, and after Liu Bang established the Han Dynasty, Zhang Liang always claimed that the purpose of helping Liu Bang was to "avenge Korea". Zhang Liang's "motive" has a great effect on the external export, on the one hand, he explained to the world that he was a loyal and righteous soldier, and the reason why he joined Liu Bang's team was to be able to defeat the violent Qin and avenge his homeland. The use of such a motive can not only help Zhang Liang's integrity and reputation to a higher level, but also make it a reason for him to avoid the scourge of killing in the future.
After Liu Bang established the Han Dynasty, he was ready to reward this group of meritorious ministers under him, especially Zhang Liang, who had integrity and ability, and was given rich property and lofty status by Liu Bang, but Zhang Liang was proficient in the way of Huang Lao, did not love power, and knew the way of "rabbit dead dog cooking", so he used it
"The subject serves His Majesty only to achieve the idea of avenging Korea."
It is said that there is active risk aversion
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And it shows the idea and appeal of wanting to live in seclusion in the mountains and forests. After Liu Bang and Lü Hou learned of Zhang Liang's thoughts, they sincerely felt relieved and regretful. It is gratifying that such talents, in those years, made first-class merits, not only did not ask for merit and rewards from themselves, but instead took the initiative to beg to live in seclusion in the mountains and forests, and such integrity and realm are worthy of comfort", and regret is: "It is inevitable that such talents did not continue to dedicate themselves to the Great Han, and it is inevitable that it will be a little pity." ”
Later, although Liu Bang did not continue to reward Zhang Liang's high-ranking officials and Houlu, he still made them "Liu Hou".
Zhang Liang posed no threat to Liu Bang
Since Zhang Liang understood the rules so well and kept the way of his subjects, Liu Bang and Lü Hou naturally had no reason to kill him later, plus later Zhang Liang showed an attitude of no desire and no demand, did not talk about the affairs of the government, and spent all day in the fiefdom, thus releasing the message of "no dispute with the world". In the future, although Zhang Liang had great talent, although Liu Bang and Lü Hou were not at ease, Zhang Liang, who was in such a state, helped him avoid the scourge of killing.
Not killing Zhang Liang was also to reflect the generosity of the Han court
Since ancient times, emperors have killed heroes, often an interesting combination of one who wants to kill and one who does death. After Liu Bang established the Han Dynasty, he also poisoned some heroes, Zhang Liang's talent is often the biggest threat to Liu Bang, fortunately, Zhang Liang can not be in danger, properly coped with, so that he can escape from the sky, to be able to live happily. In fact, in addition to Zhang Liang's self-protection, it is also related to the power plots of Liu Bang and Lü Hou. Although killing heroes is something that every emperor will do, but everything is too late, if you kill Zhang Liang, who is the third master of the Han Dynasty, this will be greatly detrimental to the foundation of the Han Dynasty.
Meditation asked about the protective clothing
In the later period, Zhang Liang was obsessed with cultivating Xuan and asking questions, so he did not ask about the world in his fiefdom, but devoted himself to the matter of alchemy and cultivation. Zhang Liang's behavior is not only an expression of "love" but also a "deception of those in power in the imperial court", Zhang Liang wants to use this as a reason to let everyone know that he Zhang Liang has no intention of asking about the affairs of the imperial court, he has long seen through the red dust, and the worldly affairs have nothing to do with him, there is neither a party nor a feather.
Some people think that Zhang Liang was obsessed with asking questions later, but it was just a hypothesis, the purpose of which was to deceive the Wang court so that he could live in peace for the rest of his life. However, such an idea is obviously wrong, because in ancient times, asking questions was a common thing, and superstitious ancient people certainly did not regard "cultivation" as a child's play, so Zhang Liang's single-minded devotion to the Tao was true, and later away from strife, even if the embodiment of great wisdom, was also an appendage of his cultivation.
brief summary
Zhang Liang's life is brilliant, he not only exerted the value of himself to the maximum in a reasonable period of time, but also successfully made himself a model for future generations and a figure that can be learned from in future generations, such a practice can be much higher than the people who were attached to the big position and power at that time, and they were also too wise.