History of the Peloponnesian War
Thucydides
Thucydides. History of the Peloponnesian War. Crawley, Richard, translator. London and Toronto: J. M. Dent and Sons Ltd.; New York: E. P. Dutton and Co., 1914.
His emissaries, accordingly, departed with the letter and the requisite verbal instructions; and he attended to the affairs of the army, making it his aim now to keep on the defensive and to avoid any unnecessary danger.