If it had not been for the pernicious power of envy, men would not so have exalted vengeance above innocence and profit above justice... in these acts of revenge on others, men take it upon themselves to begin the process of repealing those general laws of humanity which are there to give a hope of salvation to all who are in distress.

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.

Three of the gravest failings, want of sense, of courage, or of vigilance.

Ignorance is bold and knowledge reserved.

Don't confuse meaning with truth.

Most people, in fact, will not take the trouble in finding out the truth, but are much more inclined to accept the first story they hear.

The Peloponnesian War turns out to be no dry chronicle of abstract cause and effect. No, it is above all an intense, riveting, and timeless story of strong and weak men, of heroes and scoundrels and innocents too, all caught in the fateful circumstances of rebellion, plague, and war that always strip away the veneer of culture and show us for what we really are.