"The major barrier to mutual interpersonal communication is our very natural tendency to judge, to evaluate, to approve or disapprove, the statement of the other person or the other group."
-Carl Rogers, "Communication: Its Blocking and Its Facilitation," 1951
"Arguments can be compared with law-suits, and the claims we make and argue for in extra-legal contexts with claims made in the courts, while the cases we present in making good each kind of claim can be compared with each other."
-Stephen Toulmin, The Uses of Argument