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.
Again, they are bold beyond their strength, venturesome beyond their better judgment, and sanguine in the face of dangers; while your way is to do less than your strength warrants, to distrust even what your judgment is sure of, and when dangers come to despair of deliverance. Nay more, they are prompt in decision, while you are dilatory;
they stir abroad, while you are perfect stay-at-homes; for they expect by absence from home to gain something, while you are afraid that, if you go out after something, you may imperil even what you have. If victorious over their enemies, they pursue their advantage to the utmost;
if beaten, they fall back as little as possible.
Moreover, they use their bodies in the service of their country as though they were the bodies of quite other men, but their minds as though they were wholly their own, so as to accomplish anything on her behalf.