Four of The Most Distinguished Iranian Figuresr   1. Bu-Ali-Sina, the most distinguished of physicians in all times Hossein Ibn Ali Ibn Sina who is well-known across the world as Avicenna, and given the epithet master of all physician, was born to a noble and erudite family in the year 979 in one of Bokhara's villages. This superior physician, later became the most influential person in the arenas of science and philosophy in the world of Islam. He learned the glorious koran at the age of five and soon attained maturity and perfection in religious studies. Bu-Ali started reading medicine and philosophy at 16, compiled and wrote the significant treatise (book) of Ghanoon, a masterpiece concerning medicine in 14 volumes when he was barely 19. Avicenna produced over 180 essays and treatises during his life time. Apart from medicine and philosophy, he also outmastered his contemporaries in logic, mathematics, astronomy, natural sciences, music, alchemy as well as many other areas of investigations 2.Abubakr-Mohammad-Ibne-Zakarria-ye-Razi: The renowned Iranian scientist and physician (251-313AH) studied philosophy, mathematics, astronomy and literature in the city of Ray. At the later stages of his life he delved into medicine in which he earned substantial global recognition and acclamation. Generally, Razi held certain philosophical ideas contrary to those of Aristolle's. Not only the discovery of alcohol is attributed to Razi, but he is also the first to embark upon compiling a treatise on child medicine (pediatrics) as well as conducting extensive research on diseases such as pox, measeles and skin eruption. 3. Hafez, the supreme master of mystical lyric or poetry Khajeh Shamsoddin-Mohammad-Hafez-e-Shirazi was born in early 8th century AH in the fabulous city of shiraz. He devotedly committed himself to study multifarious sciences, during his youth, through which he ventured into delicate arenas of theosophy, Koranic interpretation and exegesis as well as classical Arab literature. He was given the name Hafez, which mean memorizer, for he knew the holy Koran by heart. His splendid masterpiece called the grand Divan enjoys the loftiest status throughout the annals of the Persian language and can, interestingly enough, be found in almost every Iranian household. Thus, people usually consult Hafez(s) Divan to see what it augurs. He has veritable been acclaimed as the king or sultan of mystical poetry, which has earned him, of course, global recognition too. His great "Divan" in the meantime has been translated into several languages. 4. Dr. Mahmood Hessabi "the chosen scientific character for the 1990" In 1990, the ABI biographic institute in United States as well another similar center in Britian, in an arduous selection among some 5,000 world scientific figures, chose Dr. Mahmood Hessabi as the man of science for the year. He was born in Tafresh, in the suburbs of Tehran in 1281. Dr. Hessabi received his education both in Lebanon and France, in the fields of electrical and mine engineering, medicine, biology, astronomy and finally in physics. After earning the doctorate degree or (Ph.D) in physics from Sourbon university in Paris, he returned home and began his cultural and scientific endeavors. Instituting Tehran university's geo-physics institute, establishing the first meteorological station and the first satellite - scanning observatory in Shiraz as well as founding the atomic research center are all but small ortions of the immensity of services rendered by this accomplished man of knowledge.