Abu 'Abd Allah Muhammad ibn Muhammad ibn al-Nu'man al-'Ukbari al-Baghdadi, known as al-Shaykh al-Mufid and Ibn al-Mu'allim , was a prominent Twelver Shia theologian. His father was a teacher , hence the name Ibn al-Mu'allim. The title "al-Mufid" was given to him either by Muhammad al-Mahdi, the twelfth Shia Imam, or by al-Rummani, a Sunni scholar, after a conversation with him. The leader of the Shia community, he was a mutakallim, theologian, and Shia jurist.
He was taught by Al-Shaykh al-Saduq, Ibn Qulawayh, Abu Abdallah al-Basri and al-Rummani, and Sharif al-Murtaza and Shaykh Tusi were among his students. Only 10 of his 200 works have survived, among which are Amali, Al-Irshad, Al-Muqni'ah, and Tashih al-Itiqadat. Wikipedia
“No tool is more beneficial than intelligence. No enemy is more harmful than ignorance.”
http://encarta.msn.com/quote_561557126/Intelligence_No_tool_is_more_beneficial_than.html
The Book of Guidance into the Lives of the Twelve Imams, 1981, "The Life of the Commander of the Faithful" (I. K. A. Howard (tr.)).
