The Quran is a Divine Miracle of Literature [Prophesy - Science - Warnings - Wisdom - Truths]...and it has been Preserved 100% In the Original Language - for over 1,400 years!
Humanity has received Divine Guidance only through two channels:
The Word of Almighty God ("Allah" [in Arabic]) [scriptures, Bible, Psalms, etc.]
The Prophets sent by the Allah to communicate His Will to mankind
These two things have always been going together, hand in hand.
More important though, there were at that time, tens of thousands of his companions ("sahabi" in Arabic) who memorized the complete Quran from the instruction of the prophet Muhammad (peace be upon him). Even the prophet himself (peace be upon him) used to recite it with angel Gabriel once a year and in the last year of his life he recited it two times just before the month in which he died.
Next, the leader who came after the prophet Muhammad (peace be upon him) (Abu Bakr) entrusted the collection of the Quran to be written in one volume by one of the Prophet's scribe, Zaid Ibn Thabit. He kept it till his death. Then the next leader, Umar and after him to his daughter, Hafsa who had been one of the wives of Prophet Muhammad (peace be upon him).
Then from the original text which now resides in Topkope Museum, in Istanbul, Turkey, the next leader, Uthman prepared several other exact duplications and sent them to various Muslim territories such as; Uzbekistan and Turkey and other places. These scriptures are still in museums there and one has found its way to a museum in England as well. All of them are exactly the same. Today many of the Muslims from these areas are still memorizing the Quran.
The Quran was so meticulously preserved because it is the Book of Guidance for all of humanity for all times. That is why it does not address just the Arabs, in whose language it was revealed. In fact Arabs today do not comprise more than 13% of the Today of Muslims in the world today.
The Quran speaks to "mankind"
Quran speaks to all of mankind on a general basis without regard to race, tribe, color, social position, financial condition or genealogy.
Allah the Almighty says:
"O Mankind! What has seduced you from your Lord so Generous?" [Noble Quran 82:6]
The Practical Teachings of the Quran
Teachings of Quran are established by the example of Muhammad (peace be upon him) and the good Muslims throughout the ages have endeavored to emulate his teachings both in thought and conduct. The distinctive approach of the Quran is that its instructions are aimed at the general welfare of the mankind and are based on the possibilities within his reach.
The Quran is Wisdom Conclusive.
It neither condemns nor tortures the flesh nor does it neglect the soul. It does not humanize God, nor does it deify man. Everything is carefully placed where it belongs in the total scheme of creation.
Yet it obviously is not written in human style (chronological order). Those who would claim that the prophet Muhammad (peace be upon him) was the author of the Quran are claiming something that is humanly impossible.
How could any person of the 7th century utter such scientific truths as those found in the Quran? Could he describe the evolution of the embryo inside the uterus so accurately as we find it now recorded in modern science? [See: Dr. Keith Moore's book - on embryology]
Secondly, is it logical to believe that Muhammad (peace be upon him) who up to the age of forty was marked only for his honesty and integrity, began all of a sudden the authorship of a book matchless in literary merit and the equivalent of which the whole legion of the Arab poets and orators of the highest caliber could not produce?
And lastly, is it justified to say that Muhammad (peace be upon him) who was known as "Al-Ameen" (trustworthy) in his society and who is still admired by the non-Muslim scholars for his honesty, would lie about receiving the Quran (which forbids lying) from the Angel Gabriel and then still be able to establish the best human society on the face of the earth, based on truth?
Surely, any sincere and unbiased searcher of truth must come to the conclusion that the Quran is the revealed Book of Almighty Allah.
Readers can easily see how the modern world is coming closer to reality regarding the truth of the Quran. We appeal to all open minded scholars to study the Quran in the light of the aforementioned points. We invite all to challenge the validity and accuracy of the sciences known to man today and keep in mind that this is the EXACT TEXT used by the Prophet Muhammad (peace be upon him) over one thousand four hundred years ago.
We are sure that any such attempt will convince the reader that the Quran could never have been written by any human being ever.