They're talking about things of which they don't have the slightest understanding, anyway. It's only because of their stupidity that they're able to be so sure of themselves.
Franz KafkaIt requires enormous presence of mind or rather quickness of wit, when opening your eyes to seize hold as it were of everything in the room at exactly the same place where you had let it go on the previous evening. That is why the moment of waking up was the riskiest moment of the day. Once that was well over without deflecting you from your orbit, you could take heart of grace for the rest of the day.
Franz Kafka