Consitutional Law...

I recently read the following quote from Justice Jackson's concurring opinion in Youngstown Sheet & Tube Co. v. Sawyer. He is referring to constitutional interpretation (specifically regarding Presidential power, but I feel it applies more generally):

"Just what our forefathers did envision, or would have envisioned had they foreseen modern conditions, must be divined from materials almost as enigmatic as the dreams Joseph was called upon to interpret for Pharaoh. A century and a half of partisan debate and scholarly speculation yields no net result but only supplies more or less apt quotations from respected sources on each side of any question. They largely cancel each other."

"A century and a half" has now turned into two centuries, with very little change (in my opinion).