I believe that there is a fine line between keeping the balance between feelings and logic. This is because if a speech is only feeling then it would connect with the audience but there would be no meat to the words that you were saying without logic. Likewise, if a speech only includes logic then the speech would be very dry and have no excitement to keep the audience engaged. I believe crossing the line is when your speech either includes only bullet points of facts, just reading off a paper or when there is no proof of what you are saying.
This was very good! I agree that there is a fine line when keeping the balance of feelings and logic. I liked how you talked about a speech being dry with no excitement if only logic is used.