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: Bahya ben Joseph ibn Paquda was a Jewish philosopher and rabbi who lived at Zaragoza, Al-Andalus in the first half of the eleventh century. He is often referred to as Rabbeinu Bachya.
