All of the following are principles that guide historians in their work except which one

Explanation:

Historians need to have accuracy, honesty and opinion, but they don't need empathy to do their work. Most of it, because empathy is a subjective, non factual ingredient that skews all the work, it contaminates objectivity.

So, in order to do science historians need to have objectivity and analyse situations according to events are, not how they think they are.

i can't beat you to a pulp if i'm not close enough.

b: the establishment clause  

b: socialism