Arab philosopher and second teacher

Abu Yusuf Yaqoub bin Ishaq Al-Kindi, an Arab Muslim scholar, excelled in astronomy, philosophy, chemistry, physics, medicine, mathematics, music, psychology, and logic, which was known as theology.He lived in Basra at the beginning of his life, then moved from there to Baghdad, where he pursued sciences and knowledge in order to gain from it, during the era of Al-Ma''mun and Al-Mu''tasim, in an at...