[[caption-width-right:211:Hey, at least he's fair.]]
->''"Right, as the world goes, is only in question between equals in power, while the strong do what they can and the weak suffer what they must."''
-->-- '''[[UrExample Thucydides]]''', the ''Melian Dialogue''
"I am stronger than you, therefore, I make all the rules."
This very simple aphorism can be used by a character of virtually any level of intelligence. Usually they're explicitly evil, [[GoodIsNotNice usually]]. Bear in mind that anyone who espouses this belief will almost invariably be wrong- but usually the hero beats them by actually [[RightMakesMight somehow]] being stronger than they are so, well, the Aesop is [[BrokenAesop kind of broken]].
Remember that physical strength is not necessarily the determinant here. Monetary wealth, political power, and just about any form of bullying can take the place of this.
TruthInTelevision for the vast majority of human history, including today. Fortunately for those of us living in RealLife, people who espouse this philosophy are ''not'' always explicitly evil; in fact, the whole idea of [[KnightInShiningArmor Knights In Shining Armor]], True Warriors and "ComesGreatResponsibility" is to espouse and encourage the ''virtuous'' use of power. The truth is that "Might" is a weapon like any other: its effects depend on s/he who wields it. It ''is'' possible to use Might for good. ...It's just not as likely. It's also the least constructive of just about any of humanity's problem-solving tools, which is why people are generally encouraged to settle conflicts with something ''other'' than their fists. This is where the "violence is evil" underlying assumption comes from: someone who resorts to violence must be too stupid to use any of the more peaceful conflict-resolution tools. Or worse, are actively looking for any PretextForWar.
Fictional characters taking this trope seriously can lead in all sorts of more specific directions:
* BlindObedience (from everyone weaker)
* WrittenByTheWinners for historical cases.
Opposite hero trope:
* RightMakesMight: Good always triumphs!
See also AppealToForce in LogicalFallacies. TheHedonist, when they are a powerful character, will usually use this logic.