Keywords: Roman-mosaic-know-thyself.jpg en Memento Mori mosaic from excavations in the convent of San Gregorio Via Appia Rome Italy Now in the National Museum Rome Italy The Greek motto gnōthi sauton know thyself nosce te ipsum combines with the image to convey the famous warning Respice post te; hominem te esse memento; memento mori Look behind; remember that you are mortal; remember death Lessing Photo Archive http //www lessing-photo com/p3/110103/11010329 jpg The artist is unknown Circa 1st century PD-old-100 <gallery> File History of Rome and of the Roman people from its origin to the invasion of the barbarians 1883 14777915694 jpg 1883 File Fratelli Alinari - Mosaic National Museum Rome Italy jpg 1900s File Roman-mosaic-know-thyself jpg Today </gallery> Ancient Roman mosaics in Rome Gnothi Memento mori Gnothi Allegories of death Gnothi Skeletons in art Gnothi Museo Nazionale Romano Gnothi Ancient Greek inscriptions in Rome Gnothi 1st-century mosaics in Rome Gnothi |