A dialogue is not made up of two monologues. – Howard E. Short, quoted in United Church Herald, Vol.10, 1967 [See also above qu

And there is monologue disguised as dialogue, in which two or more men, meeting in space, speak each with himself in strangely tortuous and circuitous ways and yet imagine they have escaped the torment of being thrown back on their own resources. – Martin Buber (1878—1965), translated from German

It is impossible to speak in such a way that you cannot be misunderstood. – Karl Popper, Unended Quest

Never miss a good chance to shut up. – Will Rogers (verification of author per The Estate of Will Rogers, CMG Worldwide