Introduction: A moral sense is inborn in man and, through the ages, it has served as the common man's standard of moral behaviour, approving certain qualities and condemning others. While this instinctive faculty may vary from person to person, human conscience has consistently declared certain moral qualities to be good and others to be bad. Justice, courage and truthfulness have always found praise, and history does not record any period worth the name in which falsehood, injustice, dishonesty and breach of trust have been praised; sympathy, compassion, loyalty and generosity have always been valued, while 'selfishness, cruelty, meanness and bigotry have never been approved of by society; men have always appreciated perseverance, determination and courage, but never impatience, fickleness, cowardice and stupidity. Dignity, restraint, politeness and friendliness have throughout the ages been counted virtues, whereas snobbery and rudeness have always been looked down upon. People with a sense of responsibility and devotion to duty have always won the highest regard, those who are incompetent, lazy and lacking in a sense of duty have never been looked upon with approval. Similarly, in assessing the standards of good and bad in the collective behaviour of society as a whole, only those societies have been considered worthy,