Only this incident inseparable every custom must have, viz., that it be consonant to reason; for how long soever it hath continued, if it be against reason, it is of no force in law.
Bio: Robert Mannyng was an English chronicler and Gilbertine monk. Mannyng provides a surprising amount of information about himself in his two known works, Handlyng Synne and Mannyng's Chronicle.