the objection from the second aspect corruption does not appear to the second sense. if this were granted to him and that there is no corruption except by withering then how did he know that it does not suffer from withering? as for his turning to observations this is impossible because their quantities are not known except by approximation. and the sun which is said to be one hundred and seventy times like the earth or something close to it if the amount of mountains for example was reduced from it it would not be apparent to the senses. so perhaps it is
الاعتراض من الوجه الثاني الفساد لا يظهر للحس الثاني أنه لو سلم له هذا وأنه لا فساد إلا بالذبول، فمن أين عرف أنه ليس يعتريها الذبول؟ وأما التفاته إلى الأرصاد فمحال لأنها لا تعرف مقاديرها إلا بالتقريب. والشمس التي يقال إنها كالأرض مائة وسبعين مرة أو ما يقرب منه لو نقص منها مقدار جبال مثلا لكان لا يبين للحس، فلعلها