History of the Peloponnesian War

For they were distressed by sickness for a double cause, the season of the year being that in which men are most liable to illness, while at the same time the place in which they were encamped was marshy and unhealthy; and the situation in general appeared to them to be utterly hopeless.

Demosthenes, therefore, was of the opinion that they should not remain there any longer, but since the plan which had induced him to risk the attack upon Epipolae had failed, his vote was for going away without loss of time, while it was still possible to cross the sea and to have some superiority over the enemy with at any rate the ships of the armament which had come to reinforce them.