If you are interrupted and wish to add a point or if you want to make a point after you have finished speaking and the conversation has moved on, one way to re-enter the conversation is to say: “If I could (might) add…”
You increase the odds of a successful re-entry if you call the person by name: “Bob I wonder if I could (might) add…”
Here’s another phrase you can consider using: “If I could jump in for just a minute…”
Don’t get embarrassed using a spurious Lincoln quote. Here’s a quotation book you can trust
“This is a book to cherish and share.”—Bill Marriott, CEO, Marriott International, Inc.
“Not only does Griessman give us Lincoln quotes, but he also weaves each one into a little jewel of an essay on that particular subject.” Wayne C. Temple, renowned Lincoln scholar, Illinois State Archives
You will also enjoy Lincoln Speaks To Leaders by Gene Griessman and Pat Williams.