Argumentum ad judicium (ar-gu-men´tum ad ju-dish´i-um).—An appeal to the judgment.

Argumentum ad populum (ar-gu-men´tum ad pop´-u-lum).—An appeal to popular prejudice.

Argumentum baculinum (ar-gu-men´tum back-u-li-num).—The argument of the cudgel; appeal to force. Club-law.

Ars celare artem (ars sell-air´e ar´tem).—True art is to conceal art.

Ars longa, vita brevis (ars lon´ga vī´ta brev´iss).—Art is long, life short.

Artium magister, A. M. or M. A. (ar´ti-um ma-jis´ter).—Master of Arts.

Audi alteram partem (aw´dī al´ter-am par´tem).—Hear the other side.

Aura popularis—Cicero (aw´ra pop-u-lair´iss).—The shifting breeze of popular favor.

Aurea mediocritas—Horace (aw´re-a med-i-ok´ri-tass).—The golden mean.

Aut Cæsar, aut nullus (awt Cæsar awt nul´lus).—Either Cæsar or no one.