History of the Peloponnesian War

The tyrants, moreover—whenever there were tyrants in the Hellenic cities—since they had regard for their own interests only,both as to the safety of their own persons and as to the aggrandizement of their own families, in the administration of their cities made security, so far as they possibly could, their chief aim, and so no achievement worthy ot mention was accomplished by them, except perchance by individuals in conflict with their own neighbours. So on all sides Hellas was for a long time kept from carrying out in common any notable undertaking, and also its several states from being more enterprising.