“Of his eighteen years as emperor Septimius gave twelve to war. He destroyed his rivals in a swift and savage campaigns; he razed Byzantium after four years’ siege, thereby lowering the barrier to the spreading Goths; he invaded Parthia, took Ctesiphon, annexed Mesopotamia, and hastened the fall of the Arsacid kings. In his old age, suffering from gout but fretful lest his army deteriorate through five years of peace, he led an expedition into Caledonia. After expensive victories against the Scots he withdrew into Britain, and retired to York to die (211). ‘I have been everything,’ he said, ‘and it is worth nothing.’”
Will Durant Caesar and Christ