Persuasion is a task of skill. You must bring to your aid in speaking
every available resource. An effective weapon at times is a "remorseless
iteration." Have the courage to repeat yourself as often as may be
necessary to impress your leading ideas upon the minds of your hearers.
Note the forensic maxim, "tell a judge twice whatever you want him to
hear; tell a special jury thrice, and a common jury half a dozen times,
the view of a case you wish them to entertain."