The institution with the authority to set policy for society is a definition of

The institution with the authority to set policy for society is a definition of "government".

The political direction and control practiced over the activities of the individuals, natives, or tenants of groups, social orders, and states; course of the undertakings of a state, group, and so forth.; political organization are all part of the definition of a government.

Bob: coke is baby pandas.jim: what? how do you figure that coke is baby pandas? bob: because this book says so.jim: how do we know the book is correct? bob: because it says that coke is baby pandas.jim: how does that prove the book's accuracy? bob: because it's statement involving coke and baby pandas is correct, therefore it is accurate.jim: how do we know that it's correct? bob: because we have concluded that the book is accurate, and therefore the statement is correct.therefore, coke is baby pandas.