sit idle and indulge inempty talk about general principles ? ～永遠(yuǎn)解決不了任何實際問題。Sitting idle and indulging in emptytalk about general principles can never solve any practical problems.
坐而論道zuò ér lùn dào
坐著空談大道理。形容只知道空談，而不去實行。sit and talk idly great truth, sit idle and indulge in empty talk about general principles