But this is not a weakness or a search for security proper to a given historical language (for example, the search for certainty in the Cartesian style), but is rather inherent in the essence and very project of all language in gen eral; and even in the language of those who are apparently the maddest; and even and above all in the language of those who, by their praise of madness, by their complicity with it, measure their own strength against the greatest possible proximity to madness.