Ethical appeals "Letter from Birmingham Jail"?

"The ethical appeal is evident throughout his letter as he builds his creditability by using fair-minded language, citing experts and explaining his own expertise. King does this very convincingly when he tries to explain the difference between just and unjust laws. He says, “In no sense do I advocate evading or defying the law, as would the rabid segregationist. That would lead to anarchy. One who breaks an unjust law must do so openly, lovingly, and with a willingness to accept the penalty.” King continues, “There is nothing new about this type of kind of civil disobedience.” He cites the early Christians, the Boston Tea Party and even the Hungarian freedom fighters confronting Adolph Hitler’s legal actions in Germany as examples."