Through out the world's history Qur'an is the only book that has remained incorruptible and unchangeable, over fourteen centuries now and counting the Qur'an has remained intact and it is going to remain intact until judgement day just as ALLAH promised
Chapter 41, Verse 42
"No falsehood can approach it from before or behind it: It is sent down by One Full of Wisdom, Worthy of all Praise."
infact ALLAH challenged the disbelievers and doubters to bring a book similar to Qur'an if they can
Chapter 17 Verse 88
Say: "If the whole of mankind and Jinns were to gather together to produce the like of this Qur'an, they could not produce the like thereof, even if they backed up each other with help and support.
Chapter 11 Verse 13
Or they may say, "He forged it," Say, "Bring ye then ten suras forged, like unto it, and call (to your aid) whomsoever ye can, other than Allah!- If ye speak the truth!
Chapter 10 Verse 38
Or do they say, "He forged it"? say: "Bring then a Sura like unto it, and call (to your aid) anyone you can besides Allah, if it be ye speak the truth!"
so muslims should never feel inferior because we have the superior book and the miracle remains until the judgement day, the disbelievers and doubters should do justice to themselves and humanity and accept the truth before is too late. Islam for Life.