Sanskrit: अहं विकारहीनस्तु देहो नित्यं विकारवान्।  इति प्रतीयते साक्षात्कथं स्याद्देहकः पुमान्।   
English:  It is a fact of direct experience that the “I” (Atman) is without any change, whereas the body is always undergoing changes. So how can this body be Purusha ?