Obama could speak eloquently and sincerely like that off-the-cuff: https://www.businessinsider.in/people-are-saying-obamas-off-the-cuff-speech-on-race-was-one-o

Obama could speak eloquently and sincerely like that off-the-cuff: https://www.businessinsider.in/people-are-saying-obamas-off-the-cuff-speech-on-race-was-one-of-his-most-important-ever/articleshow/21175600.cms https://www.businessinsider.in/people-are-saying-obamas-off-... Mitt Romney wasn't bad. If you mean specifically quoting Greek poets and philosophers I would imagine Obama could (and has in speeches) but hard to tell which he wrote himself of course.