The mission of this cause is to show truth.

Ibn Sina ‎ and commonly known in English by his Latinized name Avicenna (Greek: Aβιτζιανός, Abitzianos), (born c. 980 near Bukhara, died 1037 in Hamedan in Iran was a Persian polymath and the foremost physician and philosopher of his time. He was also an astronomer, chemist, geologist, logician, paleontologist, mathematician, physicist, poet, psychologist, scientist, and teacher

1. http://daneshnameh.roshd.ir/mavara/mavara-index.php?page=%D8%A7%D8%A8%D9%86+%D8%B3%DB%8C%D9%86%D8%A7&SSOReturnPage=Check&Rand=0