It is to be emphasized that no matter how many [amplitude] arrows we draw, add, or multiply, our objective is to calculate a single final arrow for the event . Mistakes are often made by physics students at first because… — Richard P. Feynman Copy Share Image
![“It is to be emphasized that no matter how many [amplitude] arrows we draw, add, or multiply, our objective is to calculate a single final arrow for the event . Mistakes are often made by physics students at first because they do not keep this important point in mind. They work for so long…” quote by Richard P. Feynman](https://sms4smile.com/quotes/img-quotes/94d/richard-p-feynman-495_add_it-is-to-be-emphasized-that-no-matter-ho_791144.jpg)