" the Qur’ān appears to be interested in three types knowledge for man. One is the knowledge of nature which has been made subservient to man, i.e., the physical sciences. The second crucial type is the knowledge of history (and geography): the Qur’ān persistently asks man to " travel on the earth" and see for himself what happened to bygone civilizations and why they rose and fell. The third is the knowledge of man himself. "