"Fundamentalism" is a word that came from the heart of the Christian religion. It means faith that goes by the word of the Bible. Fundamental Christianity, or going with the Bible, does not mean going around and killing people. There is no fundamental Islam. There is only Islam full stop. The question is how the Koran is interpreted.
All of a sudden we see that the greatest interpreters of Islam are politicians in the western world. They know better than all the speakers in the mosques, all those who deliver terrible sermons against anything that is either Christian or Jewish. These western politicians know that there is good Islam and bad Islam. They know even how to differentiate between the two, except that none of them know how to read a word of Arabic.
The Language of Islam
You see, so much is covered by politically correct language that, in fact, the truth has been lost. For example, when we speak about Islam in the west, we try to use our own language and terminology. We speak about Islam in terms of democracy and fundamentalism, in terms of parliamentarism and all kinds of terms, which we take from our own dictionary. One of my professors and one of the greatest orientalists in the world says that doing this is like a cricket reporter describing a cricket game in baseball terms. We cannot use for one culture or civilization the language of another. For Islam, you've got to use the language of Islam.
Driving Principles of Islam
Let me explain the principles that are driving the religion of Islam. Of course, every Moslem has to acknowledge the fact that there is only one God.
But it's not enough to say that there is only one God. A Moslem has to acknowledge the fact that there is one God and Mohammed is his prophet. These are the fundamentals of the religion that without them, one cannot be a Moslem.
But beyond that, Islam is a civilization. It is a religion that gave first and foremost a wide and unique legal system that engulfs the individual, society and nations with rules of behaviour. If you are Moslem, you have to behave according to the rules of Islam which are set down in the Koran and which are very different than the teachings of the Bible.
The Essence of Islam
Now let's move to the essence of Islam. Islam was born with the idea that it should rule the world.
Let's look, then, at the difference between these three religions. Judaism speaks about national salvation - namely that at the end of the story, when the world becomes a better place, Israel will be in its own land, ruled by its own king and serving God. Christianity speaks about the idea that every single person in the world can be saved from his sings, while Islam speaks about ruling the world. I can quote here in Arabic, but there is no point in quoting Arabic, so let me quote a verse in English. "Allah sent Mohammed with the true religion so that it should rule over all the religions."
The idea, then, is not that the whole world would become a Moslem world at this time, but that the whole world would be subdued under the rule of Islam.
When the Islamic empire was established in 634 AD, within seven years - 640 - the core of the empire was created. The rules that were taken from the Koran and from the tradition that was ascribed to the prophet Mohammed, were translated into a real legal system. Jews and Christians could live under Islam provided they paid poll tax and accepted Islamic superiority. Of course, they had to be humiliated. And Jews and Christians living under Islam are humiliated to this very day.
Entire post here.