Abstract
In this paper I show that madness, in the context of Wittgenstein’s later work, should not be mistaken for the grammatical gap which is opened when a reaction takes place, which has no place in the language-game played in that very moment. Besides, and bearing in mind that we often do not place worth on something until we miss it, it is emphasized that it is in the madman, taken as a grammatically isolated individual, with whom, we are best able to appreciate agreement in form of life on which Wittgenstein’s later work is based