I regarded as the uttermost in its extent, ora that among the objects of nature that he can resolve through observation and mathematics and determine synthetically in intuition (the extended) there can be a tran sition to those which can never be exhibited in concreto either in sense or imagination (the simple); nor will he admit that one can take as fun damental in nature itself, a faculty (freedom) that operates indepen dently of the laws of nature, and thereby restrict the business of the understanding, which is to trace the origin of appearances guided by necessary rules; nor, finally, will he concede that the cause of anything should be sought outside nature (an original being), for we are ac quainted with nothing beyond nature, since it is nature alone that pro vides us with objects and instructs us as to their laws.