the discovery of a form of madness immanent within reason; and from there a process of doubling on the one hand a 'mad madness' that turns its back on the madness that properly belongs to reason, and which through that rejection, redoubles its power, and through that redoubling falls into the simplest, most hermetic and most immediate forms of madness; and on the other hand a 'wise madness' which welcomes the madness of reason, listens to it, recognises its right of abode and allows itself to be penetrated by all its vivid power, thereby protecting itself from madness in a manner far more effective than any obstinate refusal, which is condemned to failure in advance.