Annihilate and decimate both mean to destroy something or someone, but annihilate means to destroy something as a whole, and at a bigger scale, while decimate doesn't have to mean destroying the whole thing.
Eradicate and massacre are both violent words with the intent to convey destruction, but eradicate is a more general term, as massacre is meant to simple destroy/kill a large group of people.
Logic and the use of facts are an effect element for persuasion. Appealing to the audience/reader’s logos is going to get them to listen to reason. Facts and logic cannot be manipulated by emotion, so it makes for a much stronger argument. That is what people will listen to the most.
Diamond in a ring as a recreation/copy of something can never be authentic
Well this is just an expression and it's expressed as I ran for my life. All this means is that the character is running as fast as the character can, like his life is on the line, thus seeming that the character is "running for his life". The scenario that this expression is used in is when either the character needs to get somewhere, fast, or is actually running away from something. There are rare times where I ran for my life is a literal meaning in which they are running from a threat.