Joseph Campbell said this quote
“ One of the most interesting histories of what comes of rejecting science we may see in Islam, which in the beginning received, accepted, and even developed the classical legacy. For some five or six rich centuries there is an impressive Islamic record of scientific thought, experiment, and research, particularly in medicine. But then, alas! the authority of the general community, the Sunna, the consensus—which Mohammed the Prophet had declared would always be right—cracked down. The Word of God in the Koran was the only source and vehicle of truth. Scientific thought led to 'loss of belief in the origin of the world and in the Creator.' And so it was that, just when the light of Greek learning was beginning to be carried from Islam to Europe—from circa 1100 onward—Islamic science and medicine came to a standstill and went dead.... ”