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.
on the contrary, though it is the fashion of our country not to use many words where few suffice, yet, whenever occasion arises to expound an important matter and thereby to accomplish by speech the end we have in view, we use words more freely.
And do not receive what we say in a hostile spirit, nor feel that you are being instructed as though you were without understanding, but regard our words as merely a reminder to men who know how to come to a good decision.
For it is in your power to turn your present favourable fortune to good account, not only keeping what you have got, but acquiring honour and reputation besides. You may thus avoid the experience of those who achieve some unwonted success; for these are always led on by hope to grasp at more because of their unexpected good fortune in the present.