Unless

This is the character of truth: it is of all time, it is for all men, it has only to show itself to be recognized, and one cannot argue against it.  A long dispute means that both parties are wrong.
—  Voltaire
From: “Philosophical Dictionary“
[This presupposes that both parties are seeking truth.  In philosophy, that may be the case.  In politics, religion and commerce, that is rarely the case.  Rather, opposing sides are seeking to improve (or maintain) the positions of their representative constituencies.  It is rarely the case that a politician will side with the preponderance of truth when it runs against the economic interests of those who support him (or her) financially.  Nor should we ever expect it to be so for more than the briefest of times.  —  KMAB]
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On This Day In:
2013	Divergent Roads To Similarity?
2012	In The Process
2011	What Do You Emphasize?