Thucydides (c. 460-400 BCE)
“The surest way of harming an enemy is to find out certainly what form of attack he is most frightened of and then to employ it against him.”
- From a speech attributed to Alcibiades in the History of the Peloponnesian War (Book VI, section 91) by Thucydides, translated by Rex Warner (Penguin Classics, 1972).
