Chapter 4. B) The Principle Of Rational Discussion

I chose to write about this section in Chapter 4 because it was pretty interesting to me.  First it talks about how we assume that the other person who is dicussing with us or whose arguments we are reading is sussposed to know about the subject, they are able and willing to reason well, and they are not lying.   One example that I found interesting was how they talked about the "lying" section (Pg. 60 "Condition 3").  It talks about if you find somebody continuously lying their is not point with reasoning with them because they are just going to keep telling lies.
There were two other conditions that were also discussed in this chapter.  At the end of the chapter it explains what "The mark of irrationality" is.  The mark of irrationality is if you recognize that an argument is good, then it is irrational not to accept the conclusion.