Explain what montesquieu means when he writes every man invested with power is apt to abuse it and to carry his authority as far as it will go?

In his book, "The Spirits of the Law", Montesquieu writes this pasage advocating for the separation of powers within the government.

He explains that political liberty can only exist when there is no abuse of power, and history has shown a repetitive abuse of power by the man who held it.

Therefore, Montesquieu calls for a system of checks and balances in which no man is compelled to do what the law does not oblidge him nor does he have to refrain from doing what it allows.

the great wall of china worked as a defense for the feudal states of the zhou dynasty to the north. during the warring states period more walls were put up to defend the borders of the different kingdoms. it was semi successful because despite the wall, the mongols eventually conquered china also the great wall provided protection to the economic development and cultural progress, safeguarded the trading routes such as the silk road, and secured transmission of information and transportation. @jayxboof

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