It is convenient that there be gods, and, as it is convenient, let us believe that there are.
Authentication Score 3
Ovid. Ars Amatoria. 2, bk. 1, l. 637.
Ovid. "Ars Amatoria." Ovid: The Art of Love and Other Poems. Harvard UP, 1929, bk. 1, l. 637.