Maxime ita dicta quia maxima ejus dignitas et certissima auctoritas

Maxime ita dicta quia maxima ejus dignitas et certissima auctoritas, atque quod maxime omnibus probetur. A maxim is so called because its dignity is chiefest, and its authority most certain, and because universally approved by all. Co. Litt. 11.

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