Rule of three research

The rule of three is a technique that is used to persuade people. We can find it in many political speeches, religion, public safety, comedy, fairy tails etc.. The effect that it generates is to create a phrase, in a funier way, that remain in our head, for example it can be a rhyme. 

Now I will put some examples of the rule trhee, that I find more linked to the political aspect:

• “Duty – Honor – Country. Those three hallowed words reverently dictate what you ought to be, what you can be, and what you will be”- Gen. Douglas MacArthur

• “This is not the end. It is not even the beginning of the end. But it is, perhaps, the end of the beginning” - Sir Winston Churchill

• “Life, liberty, and the pursuit of happiness”- th e American Declaration of Independence

Source: http://www.presentationmagazine.com/rule-of-three-836.htm