Some legislators only wish to vengeance against a particular enemy. Others only look out for themselves. They devote very little time on the consider… - Thucydides

For these reasons or reasons very like them he was killed
who, of all the Hellenes in my time, least deserved to come
to so miserable an end, since the whole of his life had been devoted
to the study and the practice of virtue.

To fit in with the change of events, words, too, had to change their usual meanings. What used to be described as a thoughtless act of aggression was now regarded as the courage one would expect to find in a party member; to think of the future and wait was merely another way of saying one was a coward; any idea of moderation was just an attempt to disguise one’s unmanly character; ability to understand a question from all sides meant that one was totally unfitted for action. Fanatical enthusiasm was the mark of a real man, and to plot against an enemy behind his back was perfectly legitimate self-defence. Anyone who held violent opinions could always be trusted, and anyone who objected to them became a suspect.

History is philosophy teaching from examples.