I never had much success overcoming objections with clever comebacks. They read well in textbooks, but when I tried to use them, they only seemed to lead into an argument. I found if a hundred times more effective when I could get a direct testimony from one of my “witnesses”.
I have been inspired by reading about a few great men in history, but my biggest inspiration, and some of the best ideas I’ve ever learned, have come from the men I have done business with, and friends I have made. As I profited by their ideas, I have made a point to tell them about it. I find that people love to hear that they have helped you.