As charming as a silver bell.
To be silver-tongued is to be persuasive or eloquent, named after the pleasing sound of a silver bell. You’d think all great leaders would have to be silver-tongued speakers, but that isn’t so! For example, Thomas Jefferson actually had a speech impediment and was reluctant to speak. Luckily for us, he used his writing to communicate, earning him the nickname, “the pen of the revolution.”