If the people of this religion are asked about the proof for the soundness 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.
Muhammad ibn Zakariya al-Razi
Abū Bakr Muhammad ibn Zakariyyā al-Rāzī (Persian: ابوبكر محمّد زکرياى رازى Abūbakr Mohammad-e Zakariyyā-ye Rāzī, also known by his Latinized name Rhazes (/ˈrɑːziːz/)[3] or Rasis; 854–925 CE), was a Persian[4][5][6] polymath, physician, alchemist, philosopher, and important figure in the history of medicine. He also wrote on logic, astronomy and grammar.[7]source:
https://en.wikipedia.org/wiki/Muhammad_ibn_Zakariya_al-RaziIt is quite surprising that this quote was said during the Islamic Golden age. Apparently nothing changes...
Regards,