Caspar writes: “This was the grand new concept that guided him from then on in his research and led him to the discovery of his laws. ”
يكتب كاسپار :‏ « كان هذا المفهوم الجديد نقطة الارتكاز الاساسية في ابحاثه من ذلك الوقت فصاعدا .‏