The answer is as follows:
First: This statement of theirs reveals the depth of their ignorance about what Muslims actually affirm in their own writings. Indeed, their utter lack of understanding leads them to suppose that Muslims hold a view whose falsehood would be plain to anyone possessed of the slightest intellect or learning. Moreover, none of the nations doubts that the Muslims are the most gifted of peoples in reason and comprehension, the most complete in knowledge and clarity of expression, the finest in intention and religious devotion, and the most diligent in pursuing truth and justice. Within the entire human race no community has ever surpassed them, nor has any law surpassed the law brought by their Prophet, Muhammad—peace and blessings be upon him. The keenest philosophers readily acknowledge this, conceding that no legislation has ever presented itself to the world more perfect than this law.
Allah has, furthermore, granted the Muslims every pathway to human knowledge in all its varieties, for mankind is of two categories: