Obstinacy standing alone is the weakest of all things in one whose mind is not possessed by wisdom.
AeschylusATHENA: There are two sides to this dispute. I've heard only one half the argument. (...) So you two parties, summon your witnesses, set out your proofs, with sworn evidence to back your stories. Once I've picked the finest men in Athens, I'll return. They'll rule fairly in this case, bound by a sworn oath to act with justice.
Aeschylus