Our opinion of the gods and our knowledge of men lead us to conclude that it is a general and necessary law of nature to rule whatever one can. This is not a law that we made ourselves, nor were we the first to act upon it when it was made. We found it already in existence, and we shall leave it to exist for ever among those who come after us. We are merely acting in accordance with it, and we know that you or anybody else with the same power as ours would be acting in precisely the same way.
Goodwill shown by the party that is asking for help does not mean security for the prospective ally. What is looked for is a positive preponderance of power in action.

Thucydides History of the Peloponnesian War
Also known as: Thoukydides
English
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About Thucydides

Thucydides (or Thoukydides)(c. 472 BC – c. 400 BC) was an ancient Greek historian, author of the History of the Peloponnesian War, which recounts the 5th century BC war between Sparta and Athens. This work is widely regarded a classic and represents the first work of its kind.

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