The full Druze canon or Druze scripture includes the Old Testament, the Qu'ran and philosophical works by Plato and those influenced by Socrates among works from other religions and philosophers.[3] The Druze claim that an understanding of these is necessary, but that their al-ʻUqqāl (عقال), ("the Knowledgeable Initiates") have access to writings of their own that supersede these.[4][5] The Epistles of Wisdom are also referred to as the Kitab al-Hikma (Book of Wisdom) and Al-Hikma al-Sharifa. Other ancient Druze writings include the Rasa'il al-Hind (Epistles of India) and the previously lost (or hidden) manuscripts such as al-Munfarid bi-Dhatihi and al-Sharia al-Ruhaniyya as well as others including didactic and polemic treatises.[6]