The most important rule of survival Brian learned in Chapter 8 was that "feeling sorry for yourself didn't work..It wasn't just that it was wrong to do, or that it was considered incorrect. It was more than that - it didn't work".
The part of the Declaration of Independence is most clearly an example of pathos
is when it calls King George III a “tyrant”. Pathos is an plea to an emotion
and a way of believing the listeners of an argument by creating an emotional answer.
Credibility is your answer! Hope this helps! :)