History of the Peloponnesian War

And whosoever maintaineth that words are not instructors to deeds, either he is not wise or doth it upon some private interest of his own. Not wise, if he think that future and not apparent things may be demonstrated otherwise than by words; interested, if desiring to carry an ill matter and knowing that a bad cause will not bear a good speech, he go about to deter his opposers and hearers by a good calumniation. But they of all others are most intolerable that when men give public advice will accuse them also of bribery.