We were deeply impressed by the lecturer's eloquent speech.

Her speech moved the audience.

His speech moved us.

To win his audience, the speaker resorted to using rhetorical techniques he learned from his communication courses.

If someone told Bismarck early on that he's a great public speaker, he would be very angry. That's so plain, he would say he is not a good public speaker, I talk with a stammer. I'm a politician, not a good public speaker.