Longinus (fl. 1st cent.? AD, Greek literary critic)
Longinus (lŏnjī´nəs), fl. 1st cent.? AD, Greek literary critic; writer of the famous treatise On the Sublime. Nothing is known of his life, and for a long time his work was attributed to Cassius Longinus. On the Sublime is one of the momuments of literary criticism. The work is the sole source for Sappho's second ode.