 
 <prompt> Wetin Schmithausen believe say dey come from learning Buddhism? Given di previous question, write one context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: ```A core problem for di study of early Buddhism na di relationship between dhyana and insight. Schmithausen, for im popular article On some Aspects of Descriptions or Theories of 'Liberating Insight' and 'Enlightenment' in Early Buddhism, talk say di mention of di four noble truths as constituting "liberating insight", wey pesin go get after mastering the Rupa Jhanas, na later addition to texts like Majjhima Nikaya 36.[page needed]``` 