Why is that so? Because all of us are born in sin and imperfection and thus are far from being completely sound in body or mind.
٥ لِمَ نَفْتَقِرُ بِٱلطَّبِيعَةِ إِلَى سَلَامَةِ ٱلْعَقْلِ بِشَكْلٍ كَامِلٍ ؟‏