Each generation of rabbis is necessarily less perfect than the rabbis that came before, since each generation is more removed from the perfection of the Garden. Therefore, no rabbi is allowed to overturn any of his forebears' wisdom, since they are all, by definition, smarter than him.
Cory DoctorowGovernments are instituted among men, deriving their just powers from the consent of the governed, that whenever any form of government becomes destructive of these ends, it is the right of the people to alter or abolish it, and to institute new government, laying its foundation on such principles, and organizing its powers in such form, as to them shall seem most likely to effect their safety and happiness.
Cory Doctorow