James Baldwin said this quote

[I am] someone who represents a very complex country which insists on being simple-minded. And simplicity, it occurs to me, it has occurred to me more than once, in my somewhat stormy life, simplicity is taken to be a great American virtue, along with sincerity. And the result of this is, if you are simple-minded enough, you can become—I didn’t want to go that far [laughs]. And as long as you’re sincere in what you say, you haven’t got to know what you’re talking about. These are the American virtues—two of them anyway. One of the results of this is that immaturity is taken to be a virtue too.