I'm not sure which part you didn't understand; this is my best guess. I believe the author is trying to say that syntax is a superficial appearance, and not relevant to - indeed, a distraction from - understanding the true beauty or ugliness, utility or disutility, of the concepts embodied in a language.
I'm not sure which part you didn't understand; this is my best guess. I believe the author is trying to say that syntax is a superficial appearance, and not relevant to - indeed, a distraction from - understanding the true beauty or ugliness, utility or disutility, of the concepts embodied in a language.