When a quote ends a paragraph, essentially trailing off, one (generally) uses three ellipses points such as the following:
"I'm not going to humor that suggestion! There is no way ..."
Even if the end of the quote completes a sentence, if it's an incomplete thought, it may retain three points
"I'm not going to humor that suggestion! There is no way I can ..."
But what about
Mars, the red planet--but to the Romans, it is the God of War! Herein lies the story [?]
A period just doesn't seem to cut it. So the question is, three dots or four? And if four, what should the separation be? I realize this is a bit of a style issue. THE CHICAGO MANUAL OF STYLE, which I use, only advocates four equally spaced points if it indicates the removal of paragraph(s) in quoted material.