History of the Peloponnesian War
Thucydides
Thucydides, Vol. 1-4. Smith, Charles Foster, translator. London and Cambridge, MA: Heinemann and Harvard University Press, 1919-1923.
But as regards the war and the resources of each side, make up your minds, as you hear the particulars fiom me, that our position will be fully as powerful as theirs.
For the Peloponnesians till their lands with their own hands; they have no wealth, either private or public; besides, they have had no experience in protracted or transmarine wars, because, owing to their poverty, they only wage brief campaigns separately against one another.
Now people so poor cannot be manning ships or frequently sending out expeditions by land, since they would thus have to be away fiom their properties and at the same time would be drawing upon their own resources for their expenses, and, besides, are barred from the sea as well.[*](i.e., by the superior navy of the Athenians.)
Again, it is accumulated wealth, and not taxes levied under stress, that sustains wars. Men, too, who till their own lands are more ready to risk their lives in war than their property; for they have confident hope of surviving the perils, but no assurance that they will not use up their funds before the war ends, especially if, as may well happen, the war is protracted beyond expectation.