Teach him a certain refinement in sorting out and selecting his arguments, with an affection for relevance and so for brevity. Above all let him be taught to throw down his arms and surrender to truth as soon as he perceives it, whether the truth is born at his rival's doing or within himself from some change in his ideas.
Michel de MontaigneAnd as hearbes and trees are bettered and fortified by being transplanted, so formes of speach are embellished and graced by variation.... As in our ordinary language, we shall sometimes meete with excellent phrases, and quaint metaphors, whose blithnesse fadeth through age, and colour is tarnish by to common using them.
Michel de Montaigne