Ante victoriam ne cane triumphum. Sing not of triumph before the victory. Thompson.
Arcui meo non confido. I trust not to my bow. Wilkes.
Ars longa, vita brevis. Art is long and life is fleeting. Priestley.
At re non impetu. By reason, not by force. Hunter.
Auctor pretiosa facit. The Giver makes them valuable. Lennox.
Audacter. Boldly. Ewing.
Aude fieri justum. Dare to do the right. Parker.
Auspice Christo. Under the guidance of Christ. Davis.
Aut mors aut vita decora. Either death, or an honorable life. Livingston.
Aut nunquam tantis aut perfice. Either do not attempt, or complete. Heming.