You should remember that the Holy Quran is the fountain-head of all real bliss and true means of salvation. Of course those who do not follow the teachings of the Holy Quran are themselves to be blamed. One section constitute the people who do not have faith in this Book and do not believe that this is the word of God. These people are indeed far drawn away from it. But as for those who believe it to be the word of God and the means of salvation, if they do not act upon it, it would be certainly a matter of great grief. Lot of those are there who have not read this book at all. The people who fall in this category and are ignorant and negligent are like the man who knows that at such and such a fountain he would find pure sweet and cold water and this water would cure many a disease. Though he is quite certain of the truth of this fact and he is at the same time thirsty and afflicted with various diseases, yet he does not approach that fountain; how unfortunate would that person be and how ignorant as well. Such a person should have put his lips on the fountain and drank to his fill. But he remains away from it as if he does not know anything about it – and he stays away from it till death overtakes him.
(Malfoozat vol. 7, pg. 181)