Sayyid Qutb and the Ideology of al-Qaeda and ISIS. "It is clear from the above that the fountain of all extremist, terrorist movements in the 20th century, whether al-Qaeda, al-Nuṣrah or ISIS, is the ideology of Sayyid Quṭb. This ideology has been employed over the decades by the Muslim Brotherhood (al-Ikhwān) to facilitate their own sinister goals which have nothing to do with Islām but are entirely political in nature."
