Optimam esse legem

Optimam esse legem, quae minimum relinquit arbitrio judicis; id quod certitudo ejus praestat. That law is the best which leaves the least discretion to the judge; and this is an advantage which results from certainty. Bacon, De Aug. Sc. Aph. 8.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.