History of the Peloponnesian War

For supporting mercenaries as they had to do with their funds, and at the same time spending them on guard-posts, and maintaining, moreover, a large navy, as they had now done for more than a year, they were in some respects ill provided, and in others would be still more at a loss, as they had already expended two hundred talents, and still owed many more; and should they lose any part whatever of their present forces through not giving them supplies, their cause would be ruined, as it was supported by voluntary aid, rather than by compulsory exertions, like theirs.

He maintained, therefore, that they must continue to carry on the siege, and not go away defeated in point of money, wherein they were decidedly superior.