Authors:

An American cannot converse, but he can discuss, and his talk falls into a dissertation. He speaks to you as if he was addressing a meeting; and if he should chance to become warm in the discussion, he will say 'Gentlemen' to the person with whom he is conversing.

Alexis de Tocqueville (2001). “Democracy in America”, p.102, Penguin
An American cannot converse, but he can discuss, and his talk falls into a dissertation. He speaks to you as if he was addressing a meeting; and if he should chance to become warm in the discussion, he will say