• ... The person who, at any stage of a conversation, disagrees, should at least hope to reach agreement in the end. He should be as much prepared to have his own mind changed as seek to change the mind of another ... No one who looks upon disagreement as an occasion for teaching another should forget that it is also an occasion for being taught.

    Mortimer J. Adler, Charles Van Doren (2014). “How to Read a Book: The Classic Guide to Intelligent Reading”, p.147, Simon and Schuster