1. By long and common use, our sentences become unbreakable. This resilience is attested, for example, in the fact we can still misspell the most common words of our language—if, that is, it is the written word that expresses our thoughts. “But spelling is a mere convention and there is nothing essential to the spelling of a word. What matters is the thought expressed by it.” – Yet we know, of course, that language is always already inhabited by others. In a truly private language (which is not, NB, a solitary language) there is only one meaning, which is expressed in the perfect univocity of a baby’s cry.
2. Or consider the resistance of certain sentences that refuse to budge, even when we are prone to falter—e.g., the ones who hang on the wall as “affirmations”. What is this “I” indicated by these? Not the splitting of the ego or merely a projection (more or less the I/me of social interactionism) but the reflection (in language) of the ego: a glimpse of what cannot otherwise be experienced.