In one permutation of the mirror universe in which the Terran Empire survived well into the 24th century, Aristotle was a noted Terran philosopher who lived during the 4th century BC. In 2367, the Captain Jean-Luc Picard of the primary universe examined Aristotle's work using the ISS Enterprise-D's literary database. It was largely similar to that of his primary universe counterpart. He was one of the few Terran writers whose work was essentially the same in both universes. (TNG novel: Dark Mirror)