Four qualities, and he names them himself: completeness, wide reading, accuracy, and fairness.
- He should join up the story. “My effort is to give a connected account where the narratives of past events have become fragmentary in many respects.” A historian does not just collect scraps; he makes sense of them as one story.
- He should read everything already written. “I have examined eleven earlier works composed by former scholars containing the chronicles of kings.” Eleven — he counted, because being thorough was part of the job.
- He should correct errors from evidence. By consulting “inscriptions relating to temple consecrations, royal grants, laudatory records, and other written works, I have overcome many difficulties caused by errors.” He knows earlier books contain mistakes, and he checks them against hard evidence.
- He should judge without feeling. “That noble-minded poet is alone worthy of praise whose words, like that of a judge, remain free from love or hatred in relating the facts of the past.”