Believer in the truth of Islam strives to practice Islam first and analyze it later whereas a phony believer would analyze Islam to no end and end up not practicing Islam at all.
Much may have been said about Islam but if all the leaves in the world were to be paper and all the water in the seas were to be ink, it would still not be enough to say all that needs to be said about Islam.
Religion, as practiced by many non-Muslims, is an activity only indulged in on certain days, or in certain places, whereas Islam is a way of life which involves every single aspect of our existence from this world to the next.