Hey, Keith and b'fishers, sorry for taking part in an on-going discussion without reading the previous contributions to it, but your illuminating passage about the topic is good food for my mind. Keith, you wrote: > any evidence out there that grammar knowledge enhances critical thinking? Well, unfortunately I haven't any evidence but Wittgenstein's famous expression: "the limits of my world are the limits of my language" Don't you think he was right? I'd like to have your opinion, if you have spare time for me. Annalisa