A palmist, a thief turned into a merchant, a fowler, a physician, an enemy, a friend, and a minstrel, these seven are incompetent as witness. An Agnihotra performed from motives of pride, abstention from speech, practised from similar motives, study and sacrifice from the same motives,—these four, of themselves innocent, become harmful when practised unduly.

In plain words: Vidura lists seven people who should not be trusted as witnesses. They are a palm reader, a thief turned merchant, a bird-hunter, a doctor, an enemy, a friend, and a singer for hire. He adds that fire rituals, vows of silence, study, and sacrifice are good in themselves, but they become harmful when done out of pride or to excess.