History of the Peloponnesian War

For no matter how guilty I show them to be, I shall not on that account bid you to put them to death, unless it is to our advantage; and if I show that they have some claim for forgiveness, I shall not on that account advise you to spare their lives, if this should prove clearly not to be for the good of the state.

In my opinion we are deliberating about the future rather than the present. And as for the point which Cleon especially maintains, that it will be to our future advantage to inflict the penalty of death, to the end that revolts may be less frequent, I also in the interest of our future prosperity emphatically maintain the contrary.

And I beg you not to be led by the speciousness of his argument to reject the practical advantages in mine. For embittered as you are toward the Mytilenaeans, you may perhaps be attracted by his argument, based as it is on the more legal aspects of the case; we are, however, not engaged in a law-suit with them, so as to be concerned about the question of right and wrong; but we are deliberating about them, to determine what policy will make them useful to us.

"Now the death-penalty has been prescribed in various states for many offences which are not so serious as this is, nay, for minor ones; but nevertheless men are so inspired by hope as to take the risk; indeed, no one ever yet has entered upon a perilous enterprise with the conviction that his plot was condemned to failure.

And as to states, what one that was meditating revolt ever took the decisive step in the belief that the resources at hand, whether its own or contributed by its allies, were inadequate for success?

All men are by nature prone to err, both in private and in public life, and there is no law which will prevent them; in fact, mankind has run the whole gamut of penalties, making them more and more severe, in the hope that the transgressions of evil-doers might be abated. It is probable that in ancient times the penalties prescribed for the greatest offences were relatively mild, but as transgressions still occurred, in course of time the penalty was seldom less than death.