Here is the dictionary definition of dogma: 1. A doctrine or a corpus of doctrines relating to matters such as morality and faith, set forth in an authoritative manner by a church. 2. An authoritative principle, belief, or statement of ideas or opinion, especially one considered to be absolutely true. 3. A principle or belief or a group of them: "The dogmas of the quiet past are inadequate to the stormy present" (Abraham Lincoln).

A dogma is a statement accepted without any evidence. Religion (at least, Christianity and Islam) is based on this. Only someone, whose mind is free from dogmata, may be called an educated person.