 when we explained the natural matters in this book we spoke about semen and mentioned the schools of thought of the people regarding it. we mentioned the school of thought of galen and the scholars regarding it and their arguments and despite that we did not discuss it thoroughly there.
إنا عند شرحنا للأمور الطبيعية من هذ الكتاب تكلمنا في المني وذكرنا مذاهب الناس فيه. وذكرنا مذهب جالينوس وأصحاب العلم فيه وحججهم ومع ذلك فلم نحقق الكلام فيه هناك.