We are not won by argument, which is like reading and writing and
disappears when there is need of such vanity, or like colour that
vanishes with too much light or shade, or like sound that becomes silence
in the extremes. Argument is useless when there is either no conviction
at all or a very strong conviction. It is a means of conviction and as
such belongs to the means of conviction, not to the extremes. We are not
won by arguments that we can analyse, but by tone and temper, by the
manner which is the man himself.