People
Now there’s a man with an open mind – you can feel the breeze from here!
— Groucho Marx

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker mocks someone by pretending to praise their open mind, then delivers the insult: a breeze can be felt from across the room, implying nothing is inside to block it. The compliment turns into a jibe about emptiness of thought.
Context reviewed