Smith sends the Robot off to warn the Robinsons after it has been stated by the Robot that the outside temperature is well above freezing. But, when the Robot is shown traveling toward the Robinsons, he appears to be walking over the frozen inland sea.
Dr. Smith: That is precisely what is wrong with our civilization. Everyone is a specialist. Whatever happened to the renaissance man?
Robot: By the end of the 16th century, the renaissance man, a model of versatility, had evolved. Modern man, whose pursuits became increasingly specialized, until...
Dr. Smith: Oh, dry up.
Robot: Relative humidity 47%.
Dr. Smith: This is a pretty mess you've let me get into. You're supposed to be an environmental control robot--well, control something!
Dr. Smith: (to the Robot) You bumbling incompetent. If I had any other company here, I'd have you broken down for spare parts.
Dr. Smith: Mother Nature at its mightiest. Unfortunately the Robinsons will have to enjoy it at closer quarters. Perhaps I should prepare that eulogy after all.
Dr. Smith: I can get more companionship from a cuckoo clock!
John: Now why on earth should we believe you?
Dr. Smith: May I remind you, my dear sir, that we are no longer on Earth!
Robot: Outside temperature, 59 degrees Farenheit and rising.
Dr. Smith: I've known people to make conversation about the weather, but this is ridiculous. A pretty how-do-you-do this is. Stranded on an alien planet, no one with whom to exchange intellectual ideas. No one to talk to except this... this animated weather station. And I can't even beat him in chess.
Dr. Smith: Is that what you call a sound and fury which signifies nothing?
Referencing William Shakespeare's Macbeth, Act V, Scene 5, "Life's but a walking shadow, ... a tale told by an idiot, full of sound and fury. Signifying nothing."