天乙
Most "Liezi" chapters are named after famous figures in Chinese mythology and history. Either sage rulers like the Yellow Emperor (supposedly r. 2698?–2599? BCE), King Tang of Shang (r. 1617?–1588? BCE), and King Mu of Zhou (r. 1023?–983? BCE); or philosophers like Confucius (551–479 BCE) and Yang Zhu (fl. ca. 350 BCE).