 Like promises, oaths play a part in many different human undertakings. In politics, at least among democracies, oaths of office for those in positions of power are the norm. In the professions oaths like the Hippocratic oath sworn by doctors, are also very common. In cases of testimony in court, testimonial oaths are standard, and witnesses are asked to swear oaths of veracity for their affidavits or other testimony.