In the general relaxation of public morality all the dark passions of human nature, which at ordinary times lurk in secret places, came forth to the light of day, and raged without restraint. Some, who had grown rich in a day by the death of wealthy relatives, resolved to enjoy their possessions, and indulge every appetite, before they were overtaken by the same fate. Others, who had hitherto led good lives, seeing the base and the noble swept away indifferently by the same ruthless power, began to doubt the justice of heaven itself, and rushed into debauch, convinced that conscience and honour were but empty names. For human laws they cared still less, for in the universal panic there was none to enforce them, and before the voice of public authority could be heard again, both judge and transgressor, as they believed, would be involved in a common doom. All shame and fear were accordingly thrown aside, and those whom the plague had not yet touched seemed possessed by one sole desire--to drown thought and care in an orgy of fierce excess, and then to die.
The second invasion of the Peloponnesians was prolonged for forty days, and the whole Attic territory was laid waste. Pericles again refused to venture a pitched battle against them, knowing well that the Athenian army was no match for them in the open field. But a powerful fleet was sent to cruise round Peloponnesus, which inflicted much damage on the coast districts. It was a welcome relief to the Athenians selected for this service to escape for a time from the plague-stricken city; but unhappily they carried the infection with them, and the crews were decimated by the same disease. Nor did the evil stop here: for the same armament being afterwards despatched to Potidaea, to reinforce the blockading army and fleet, caused a virulent outbreak of the plague among the forces stationed there, which up till then had been healthy. After some fruitless operations against the town this second armament was withdrawn, and returned to Athens with the loss of more than a thousand men.