Edward Gibbon on Islam
(1737-1794) Considered the greatest British historian of his time.
"More pure than the system of Zoroaster, more liberal than the law of Moses, the religion of Mahomet might seem less inconsistent with reason than the creed of mystery and superstition which, in the seventh century, disgraced the simplicity of the gospels."
[The History of the Decline and Fall of the Roman Empire, vol. 5. p. 487]