A dear reader has asked me to explain my inclusion of a quotation from Lutz's Blue Book earlier.
So here we go:
The point is that (particularly idealist) philosophers get it wrong when they think the world is a function of their own experiences.
Because that leaves them with a "blooming buzzing confusion" (old Tom Hobbes's expression) of experiential "data", they think they need a special language to clean up the mess and so describe the world.
The later Lutz says this is hogwash and that ordinary language, as it stands, is perfectly good for describing the world.
Hence, in his later philosophy, he tried to show that philosophical problems only arise because philosophers become bewitched by the mistakes inherent in their own special languages.
The "therapy" (his word) for that is a healthy dose of common sense and its attendant servant, ordinary language.
In his earlier philosophy, he had been equally bewitched and so the "therapy" is just as much a self-therapy.
To use his phrase: I [LW] want to show the fly the way out of the fly bottle.