For if many ill-conceived plans have succeeded through the still greater lack of judgment of an opponent, many more, apparently well laid, have on the contrary ended in disgrace. The confidence with which we form our schemes is never completely justified in their execution; speculation is carried on in safety, but, when it comes to action, fear causes failure.
ThucydidesIndeed men too often take upon themselves in the prosecution of their revenge to set the example of doing away with those general laws to which all can look for salvation in adversity, instead of allowing them to subsist against the day of danger when their aid may be required
ThucydidesIt is useless to attack men who could not be controlled even if conquered, while failure would leave us in an even worse position.
ThucydidesIt is a general rule of human nature that people despise those who treat them well, and look up to those who make no concessions.
ThucydidesBe convinced that to be happy means to be free and that to be free means to be brave. Therefore do not take lightly the perils of war.
ThucydidesWith reference to the narrative of events, far from permitting myself to derive it from the first source that came to hand, I did not even trust my own impressions, but it rests partly on what I saw myself, partly on what others saw for me, the accuracy of the report always being tried by the most severe and detailed tests possible. My conclusions have cost me some labour from the want of coincidence between accounts of the same occurrences by different eye-witnesses, arising sometimes from imperfect memory, sometimes from undue partiality for one side or the other.
Thucydides