Six in the fourth place means:
In a time of flowering culture, an occasional convulsion is bound to occur, uncovering a hidden evil within society and at first causing a great sensation. But since the situation is favorable on the whole, such evils can easily be glossed over and concealed from the public. Then everything is forgotten and peace apparently reigns complacently once more. However, to the thoughtful man, such occurrences are grave omens that he does not neglect. This is the only way of averting evil consequences.