Abu Bakr Ar-Razi on religion
"If the people of religion are asked about proof for the soundess of their religion, they flare up, get angry and spill the blood of whoever confronts them with this question. They forbid rational speculation, and strive to kill their adversaries. This is why truth became thoroughly silenced and concealed."
al-RAZI, Abu Bakr Muhammad b. Zakariyya', known to the Latins as Rhazes (ca.250/854-313/925 or 323/935), physician, philosopher and alchemist.
http://www.muslimphilosophy.com/ei2/razi.htm
The most free-thinking of the major philosophers of Islam, al-Razi was born in Rayy, where he
was well trained in the Greek sciences. He was reputedly well versed in musical theory and
performance before becoming a physician.
http://en.wikipedia.org/wiki/Muhammad_ibn_Zakariya_al-Razi
Muhammad ibn Zakariyā Rāzī (Persian: محمد زکریای رازی Mohammad-e Zakariā-ye Rāzi), known as Rhazes or Rasis after medieval Latinists, (August 26, 865 – 925) was a Persian[1][2] polymath,a prominent figure in Islamic Golden Age,[3] physician, alchemist and chemist, philosopher, and scholar.[4]
Numerous "firsts" in medical research, clinical care, and chemistry are attributed to him, including being the first to differentiate smallpox from measles, and the discovery of numerous compounds and chemicals including kerosene, among others.[5] Edward Granville Browne considers him as "probably the greatest and most original of all the physicians, and one of the most prolific as an author".[
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