No More Learning

Which
Canons, though they were but Canons, that is, Rules Propounded, and but
voluntarily           by Christian Princes, till the translation of
the Empire to Charlemain; yet afterwards, as the power of the Pope
encreased, became Rules Commanded, and the Emperours themselves (to
avoyd greater mischiefes, which the people blinded might be led into)
were forced to let them passe for Laws.