etiam sanato vulnere, cicatrix manet : even when the wound is healed, the scar remains - traditional
Another Latin saying about time. TEMPUS RERUM EDAX OMNIUM. tempus (time) edax (gluttonous) omnium (of all) rerum (things).
The Latin TEMPUS FUGIT - time flees - was more popular among the Romans than TEMPUS VOLAT - time flies.
noli turbare circulos meos! Said to have been the last words of Archimedes, mathematician and astronomer. He had drawn circles in the sand that he did not want the soldiers to disturb. Despite orders to the contrary, he was killed soon after.