History of the Peloponnesian War

The other generals said there were many unoccupied headlands in the Peloponnesus, which he could seize if he wished to put the city to expense. Demosthenes, however, thought that this place had advantages over any other; not only was there a harbour close by, but also the Messenians, who originally owned this land and spoke the same dialect as the Lacedaemonians, would do them the greatest injury if they made this place their base of operations, and would at the same time be a trustworthy garrison of it.

But Demosthenes could not win either the generals or the soldiers to his view, nor yet the commanders of divisions to whom he later communicated his plan; the army, therefore, since the weather was unfavourable for sailing, did nothing. But at length the soldiers themselves, having nothing to do, were seized with the impulse to station themselves around the place and fortify it.